PLEASE ANSWER: Why would a guy do these?

He seems in some way interested in you, but whether he wants to date you or wants to be friends or just wants your attention, he may not even be sure at this point, especially since he hasn't said anything. Just have fun, and don't put him on the spot about it. Maybe ask if he wants to do something with you and a group of friends rather than asking if he likes you or asking him on a date. This shows him that you're interested, but gives him time to work out how he feels.