Pity "Hi"

When someone says hi to someone else out of pity (because they feel bad not because they want to). Usually it is a girl saying it to a guy. You can identify a pity "Hi"by the following clues: they will raise there eyebroes/enlarge eyes, say your name after "hi", they will smile, and it will obviously seem forced and not genuine. Also after the pity "hi" the person will go back to what they were doing like nothing happened.