Assess the family's connectedness
In Level 2, you have two objectives.
1: Determine whether the family from the census is already a part of the broader family tree network or not.
2: Determine whether they are your ancestors--If they are, you can reserve their ordinances!
Level 2 progresses less linearly than Level 1 did. Rather than attaching sources and adding people every time, you will need to employ certain principles to determine whether a person is connected to the Family Tree. There are three main ways to verify whether this is the case:
Click "View my relationship." If there is a relationship, then the person is connected to the main Family Tree. (This method is quick and easy, but just because you aren't related does not mean they are not on the Tree)
Look for recently reserved ordinances. If there are blue (or brown) temple ordinances, It means that someone else has been working on this person and they are connected to the Tree. (This is not necessarily the case for completed temple ordinances as many ordinances were done before the Family Tree was created)
Check for lots of generations. If an individual has more than three generations of ancestors—or descendants—then they are almost surely on the Tree. (This method is the least precise but often the most obvious)
Each of these methods could be applied to the main person on the record or to any of thier family members. This is because if the person is connected to someone who is on the broader Family Tree, they are on the Tree too!
For example on the Wagner family, I chose to explore their daugher in-law Ruth Mohler. She was related to me, had recently reserved temple ordinances, and had four generations of ancestors. Any of these three facts would be enough for me to markt the line on the spreadsheet containing the Wagner census record as a 1 for tree results.