Everyone has different standards and I'm not judging anyone here, but most likey it's not ok.
I would accept such innocence from non muslim boys but when you're another fellow Arab Musim, you should really know better. You put us on the spot to have to reject your advance without seeming like an uptight snob, or just praying to God noone in the crowded corridor saw that.
I can hear it now: Oh my God did you see that?....what a hypocrite
I mean even tattooed biceps guy knew better than to offer more than a handshake and a tap on the elbow, and at least he's a pretty hot resident so it would have been.....not so uncomfortable....j/k
It doesn't mean we don't like you, we could be in love with you but still prefer that you just didn't do that. Now don't be surprised if the next time I run into you I act like I don't see you and keep on walking.