I don't know if you have fought already, but I'll try and help out.

I've been in about 6 fights or so in my life, maybe a few more. Mostly happened at the bar and such because I turn into Satan when I drink.

First rule of fighting, is: take off your shirt. If you're a chik, different story, but as for guys, take off your shirt, I'll tell you why. The other person, can grab onto your shirt and toss you around like a bicth, or grab you and crack you in the face repeatedly. Not only that, they can pull the shirt over your eyes blinding you, taking you out.

I kept a shirt on while trying to fight off 3 guys who jumped me. The one guy grabbed on to my shirt, pulled me forward towards him and he hit me with full force on my face, caving in the right side of my face. Harsh, so lose the shirt!

When the shirts are off, prepare for battle. Watch his fists, never take your eyes off of them. Practice with a friend first to get some coordination down. Prepare to dodge some fists if your fighter is knowing what their doing.

Lastly, the bridge of the nose is very, very tender. Give them a nice hard crack in the bridge, their eyes will water, blinding them, then attack! If their eyes don't water, hit them harder next time.

You'll win some fights and you'll lose some, just remeber, don't be a big talker, let your fists do the talking, and bones heal. Good luck man! Learning to fight takes more than reading shit off of here, practice with a friend