What does his body language mean, does he like me or not?

I started working on a retail store and the assistant manager ever since I went looking for a job he was the one who assisted me since the beginning of the whole job process (interview,schedule,paperwork etc,everything) but I have noticed that when he sees me he gets kind of nervous, in the interview his hands were shaking, I think he is super cute and handsome, he even made my schedule for the days that he is in the store, so I don’t know if he did it on purpose to see me more often or maybe just because he is the one who is in charge of supervising me.

But what can I really do to tell if he is into me or not, I don’t want to get in trouble because were co-workers,he has a higher position than me, but I don’t know what hint to throw out? plus I don’t even know if he has a girlfriend.I feel some sort of connection that I can’t really tell.