The main duty of the Toastmaster is to act as the host and make introductions

Participants should be introduced in a way that enourages the audience to listen to them. The Toastmaster creates an atmosphere of interest, expectation, and receptivity.
Usually this task will not be assigned to you until you are familiar with the Club and its procedures.

Before the meeting

Check with the Vice President Education to find out if a special theme has been set for the meeting and if there are any programme changes.
Call the Table Topics Master to discuss his or her duties. Provide the Table Topics Master with a list of programme participants to ensure these people will not be called on for responses.
Call all Speakers in advance to remind them that they are speaking. Ask for their speech title, manual project number, purpose to be achieved, time requested and something interesting which you can use when introducing them (job, family, hobbies, education, why this topic for this audience etc.).

Here's a sample script which you can use by filling in the gaps:

{Approach lectern, face audience}
Thank you Mr/Madam Chair, Ladies and Gentlemen, It gives me great pleasure to introduce [speaker's name] who is giving speech [ speech # ] from the [ C&L/Advanced ] Manual - [ theme ] The title of [ speaker's name ] speech is [ "speech title" ]. The objectives of the speech are [ summarise objectives ].

Tonight/Today we are going to find out [ description of talk and reason, connection of topic to speaker, qualifications or experience, special interests, handouts, audience role, level of interest ].

The timing for this speech is [ # minutes ] minutes. Please welcome [ speaker's name ] - [ speech title ].

{Lead applause and sit down}

Call the General Evaluator to confirm the assignment.
Prepare introductions for each Speaker (see above). A proper introduction can add to the success of the Speaker's presentation.
Prepare remarks which can be used to bridge the gaps between programme segments. You may never use them, but you should be prepared to avoid possibly awkward periods of silence.
Remember that performing as Toastmaster is one of the most valuable experiences in your Club work. The assignment requires careful preparation in order to have a smoothly-run meeting.

At the meeting

Arrive early in order to finish any last-minute details.
Check with the speakers for any last-minute changes.
In British clubs - sit near the front of the room for quick and easy access to the lectern.
In Irish clubs - you will normally be sitting at the top table.

During the meeting

Preside with sincerity, energy and decisiveness. Take your audience on a pleasant journey and make them feel that all is going well.
Study the Agenda carefully so that you do not miss any Timekeepers Reports or invitations to vote.
Always lead the applause before and after each presenter.
After your introduction of another presenter, remain standing near the lectern until you have shaken hands - signifying your hand over of control of the meeting - then be seated.
When another presenter has finished, shake hands again to signify that control of the meeting is returning to you.

Further information on the Toastmaster role:
http://www.toastmasters.org/Members/MemberExperience/MeetingRoles/Toastmaster.aspx

Further information on making good introductions:
http://toastmasters.wikia.com/wiki/Introduction

After every Prepared Speech and for each Table Topic the Speaker receives an Evaluation.

The Evaluation you present can make the difference between a worthwile or a wasted speech for your Speaker. The purpose of Evaluation is to help the Speaker become less self-conscious and a better Speaker. This requires that you be fully aware of the Speaker's skill level, habits and mannerisms, as well as his or her progress to date. If the Speaker uses a technique or some gesture that receives a good response from the audience, tell the Speaker so that they will be encouraged to use it again.

Record your impressions of the speech. Be as objective as possible and remember that good Evaluations may give new life to discouraged members and poor Evaluations may dishearten members who tried their best. Remember, always give the Speaker specific methods for improving for each recommendation. Begin and end your oral evaluation with encouragement or praise. Don't try to cover too much in your talk - possibly one point on organisation, one on delivery and one on attainment of purpose with a statement about the greatest asset and a suggestion for future improvement. You can cover more points with the Speaker personally after the meeting.

Praise a successful speech and specifically tell in which ways it was successful. Don't allow a Speaker to remain unaware of a valuable asset such as a smile, a sense of humour, or a good voice. On the other hand, don't allow the Speaker to remain ignorant of a serious fault or mannerism. Give the Speaker the deserved praise and tactful suggestions in the manner you would like to receive them when you are the Speaker.

In a Table Topics Evaluation you should be brief. This is not just because of time limitations, but because there is no point going into detail on aspects that the Speaker has had no time to think about. You should also bear in mind how hard some people find impromptu speaking. For example, someone uncomfortable with Topics who feels a sense of achievement by merely remaining somewhat vertical is going to be disheartened by a thesis on how they could have improved their body language. A suggested Topics Evaluation routine is one commendation, one recommendation then one commendation; each expressed in a nutshell.

Above all, in any evaluation ... bear in mind that everyone finds naked criticism of their efforts hurtful - not just you!

Further information on Evaluations from Toastmasters International:

https://www.toastmasters.org/-/media/files/department-documents/education-documents/202-effective-evaluation.ashx

Table Topics Evaluator Sheet from Haymarket Club http://toastmasterclub.org/portal.php?page=2490

Outside the meetings

Ensure the meeting location has been booked
Maintain Club equipment in working order and check after every meeting to ensure adequate supplies are available

At the meeting

Arrange the room at least ten minutes before the meeting begins
Make sure the lectern is in place, the lights are set up, the banner is displayed, seats are arranged properly with comments slips and any voting slips on them
Make sure name badges are available
Greet members and guests and arrange for guests to sit with members
Ensure the meeting starts on time
Collect voting slips and count votes (if voting applies in your Club)

The Timekeeper is responsible for keeping track of time. (The role is also known as the Timer.)

One of the skills in speech training is expressing a thought within a specific time. The Timekeeper helps those at the meeting practise this. As well as recording the times, the Timekeeper should regard each report to the meeting as a mini-speech opportunity.

Before the meeting

Confirm scheduled programme participants with the Toastmaster and General Evaluator.
Confirm time required for each prepared speech with the speakers.
Write out your explanation in the clearest possible language and rehearse it. For the benefit of guests, be sure to emphasize timing rules and how timing signals will be given.

On arrival at the meeting

Get timing equipment from the Sergeant at Arms. Be sure you understand how to operate the stopwatch and signal device and make certain that timing equipment works.
Sit where the signal device can be seen easily by those at the lecturn.

During the meeting

When introduced, explain the timing rules and demonstrate the signal device.
Throughout the meeting, signal each programme participant as indicated below. In addition, signal the Chairman, Toastmaster and Table Topics Master with red when they have reached their allotted or agreed-upon time.
Record each participant's name and time used.
When called to report by the Toastmaster, stand by your chair, announce the speaker's name and the time taken. When reporting on the Table Topics timings, remind the audience of the title or subject of each Topic.

After the meeting

Return the stopwatch and timing signal device to the Sergeant at Arms.
Give the completed Timekeeper's report to the Secretary for recording speech times.

Timing programme

Here is a timing programme which you can use on a laptop computer as a timing signal device ...
http://www.tmdistrictone.org/speechtimer.asp