Anyways, sometimes I see pro matches where they move like:
1. Nf3 1... Nf6 2. Ng1 2... Ng8
And then they start over again. Maybe they are having a little bit of fun too or what is the purpose of that?
Warming up those finger muscles
Actually there are no fingers in the fingers. The muscles that control the fingers are in the lower arm.
Sure, check out this database:
http://www.365chess.com/opening.php?m=4&n=468&ms=Nf3.Nf6.Ng1&ns=1.46.468
These are matches between 2000+ ranked players.
It's just a silly way to agree to a draw. You're actually supposed to make it seem like a fight before you agree to a grandmaster draw.
Either that, or their fingers got tired after two moves...
Ok but what about this game then:
http://www.365chess.com/game.php?gid=3787187
A 2717 player beats a 2348 with this funky opening sequence.
Ya'll sound like the Congress of the United States or a bunch of drunk kids at a middle school soccer match.
Ok but what about this game then:
http://www.365chess.com/game.php?gid=3787187
A 2717 player beats a 2348 with this funky opening sequence.
It doesn't make any sense. My only guess is that White was taunting Black for some reason, and Black was hoping that he could get a three-position draw somehow. It's pretty funny. 
Sure, check out this database:
http://www.365chess.com/opening.php?m=4&n=468&ms=Nf3.Nf6.Ng1&ns=1.46.468
These are matches between 2000+ ranked players.