I like this guy and I'm not sure if he likes me. we don't talk much though. the only sign I see is him staring at me when I'm not looking and paying attention when I talk to my friend. I had an empty pack of gum, so I tried to joke with him and I gave him an empty pack of gum when he was at his desk finishing his work or something and I said here have some gum, so he opened it and he didn't really say anything he seem like he just didn't know what to do and seem kind of shocked and i was just kidding with him i thought he would laugh or joke back. he waited a few seconds before he opened it too. was he annoyed or just nervous or something?