Books could be written on this subject, so I will just share a couple small tricks that I like to do and that I don't see many other people do.
From guard, assuming you're able to posture well, you can throw knees to the butt and upper hamstring. They're not overly damaging, but they're relatively simple to do and don't cost much energy. It also keeps you moving, so you're less likely to be stood up if you want time to work on the ground.
Also from guard, elbows to the body. I find these particularly effective because they are short and choppy. People expect punches to the face, hammer fists, even hooks to the body, but very few people expect or know how to deal with short elbows to the body. Depending on the rules, you usually can't throw elbows from 12 o'clock to 6 o'clock to the stomach, but you can almost always throw them 3 o'clock to 9 o'clock or reverse, to the ribs. Similar to a Muay Thai elbow, but to the body while you're in the closed guard.
If you can strike with the point of the elbow, you can also throw them to the quadricep. This doesn't do much if you are in someone's open guard, but it's a good weapon from someone's closed guard.
Good luck with your training.
14-4 Sig Bets
Last edited by Noob; 10-29-2007 at 10:33 PM.