It also gives you the opportunity to look like a good potential partner to a woman. You can kiss her if you feel she's warmed up to you.
I figured she might think I was "a cool guy" if I cut the BS and honestly told it like it was. She cut me off and said: "What, now you're just going to leave? When someone is getting whisked away in a cab, you are forced to give them a quick, sloppy kiss or a rough hug, or you're not even afforded the time to do anything if you take any time deciding what to do.
His run-along was sprinkled with little jumps so that she could see his face better in the window.
I guess he realized his good-bye was a bit strange. I heard from the girl he went out with that it happened.
Our mutual friend refuses to believe that our buddy did it, but my life is much more entertaining believing that he did do it.
These are extreme cases of horrible hellos and good-byes.