a guy i work with keeps trying to make me smile by saying and doing really nice things to me. examples are offering to help me, telling me jokes (but he only laughs after i laugh), coming to my desk just to say hi, sending me funny gifs instead of typing in instant message. problem is i dont think this is his normal personality and i think he is either mocking me or trying to copy me lmao. like i cannot imagine him doing this to some of the other people in the office (like people who are in their 40s). also he is way older and is married with kids. if it matters i am really shy and he is kinda quiet but also outgoing at the same time. some other coworkers think he is weird but i always try to be nice to him, so he could just realize that i am being friendly when others are not