Does my crush like me back?

So there is a guy I have been crushing on from work and he comes into the office from time to time. Two weeks ago I caught him staring at me, and a few weeks ago he tried to talk to me but I had to leave. Today he came into the office and started a conversation with my coworker so I started talking to my coworker which led me to talk to my crush, who would frequently smile at me and tried to even butt in another conversation I had with another coworker. When he was leaving he said bye to everyone but kept giving me glances up until he left the door.

Does he like me too?

Does my crush like me back?
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