Whats the answer .
when you look for similarities in two things you read, you them.

When you look for similarities in two things you read, you compare them.

Explanation:

The purpose of comparing is to find similarities between two things. For instance, if you choose to compare a poem and a novel that tell the same story, you will be focusing on what both genres have in common. What will matter to you are the aspects they share. If, however, you were contrasting them, you would be doing the opposite. Unlike comparing, contrasting means finding the differences between two things. Therefore:

When you look for similarities in two things you read, you compare them.