Click the "Contacts
" icon in your Dock. The Contacts app comes up. On the left is a list of all the people or companies you have in your contacts. On the far left are contact groups. They're like dividers in a binder, but aren't really important right now, unless you have a lot of contacts. On the right is the contact card. This is an organized list of all the information you've entered about this person.
Images: Apple
You can click on their email address to email them, their address to see where they live, or their photo to see what they look like.
Type in the search bar at the top to look for people, or scroll through the list. To change the sorting order, go to Contacts > Preferences > General > Sort by:
Click the plus in the bottom left of whatever card you have open. Click "New Contact". Then fill in what you know, and click "Done" in the bottom right.
People change. Your contacts can, too. To correct a contact, click the "Edit" button on the bottom right of the contact card. Type in the new information, and then click "Done" where the "Edit" button used to be.
Want to add information without taking any away?
You can do that, too! Click on the plus button again, and simply click on the field you want to add. Then fill it in, and click "Done"!
Click on the contact in the list on the left, and press the "Delete
" key on your keyboard. Click "Delete".