Would a girl tell me hi in front of her boyfriend?

There is this girl that I thought liked me but I saw her talking to a guy yesterday and she interrupted him talking to tell me hi. It seems to me if a girl had a boyfriend she wouldn't tell another guy hi, especially when he is trying to talk to her.

I really hoped she didn't have a boyfriend but now I dunno. :(
Updates
+1 y
Oh and we don't really know each other. So it's not like we are friends or anything...!
Would a girl tell me hi in front of her boyfriend?
Post Opinion