It means he wasn't expecting to see you.
he probably likes you and gets nervous when you discover he's staring at you OR he was surprised to see you staring at HIM.
It means he was unaware you liked him until it was revealed
You need an eye test or a psychiatrist.
When a guy you know asks "what are you doing here," it could mean that he is surprised or curious to see you in that particular place or setting. It may also indicate he wasn't expecting to see you there and is seeking clarification.
A girl ask Siri you will be surprised by the answer
lol. try to talk about your feelings and see what he says. you might be pleasant surprised.
It means she is catching the bus to see a boy.
he acts surprised
Maybe that depends what kind of boy he is.
Bulkington.
it means surprised
It means that either the man is really interested in you and wants to get your attention. Secondly that man may also had seen you somewhere and he is surprised to see you again. or He has never seen a gorgeous person like you.