Why would a guy avoid to look at you. Then when you are busy doing something, you find out that he was staring

Question

He was staring at me for more than 10 seconds. When I caught him, he just kept staring at me. I turned away nervously, since I like him.
What was he trying to do?

Answer 1

Test the waters and see how shy and or insecure you are. Honey all guys want sex. They can read us girls like a book. If he thinks that you are really easily swayed he might try to see if he can get lucky.

Answer 2

Sounds like he might be a bit on the shy side.