Specific Techniques

Uppercut

Turn the lead heel out. Shift your weight. Your heel turns your hip and shoulder into the punch. Never uppercut a person whose head is above yours, opponents eye level should be equal to yours, or below.

Hook

Generally, horizontal fist works well in close (palm down), and vertical fist works well at a greater distance (palm toward you). Turn the lead heel out on the lead hook, rear heel out on the rear hook. Shift your weight. Same for the cross, overhand, etc. When you double hook, do not turn your heel out until the second hook. The first one is a diversion.

Jab

Remember, the jab is used mostly to set up other attacks. The jab must be fast, and reliable. Insert it into every gap. Use it to probe the opponent's reactions. Use of the jab ranges from pawing with it to load up your cross to using it to conceal your low entry to a powerful punching weapon. Power has to do with how much you bring your lead hip in line with the shot, and how much you shift your weight into it. Before you can even use your jab as a feint, you have to make it believable. Otherwise your opponent will not respect it.

A jab to  the abdomen is a great way to get the opponent to lower the lead hand and expose the chin. If opponent will not lower the hand, use the punch to strike the floating rib. Use it as opponent comes toward you and you slip outside or sidestep, i.e. your head moves on the same first beat that your punch did.

Lag Punch

The lag punch is a boxing method for loading up your hook, getting a reaction, and then attacking with the other hand. Works well in the ring but no so well in the street.

Head Holding Clinch

Holding the head is not allowed in the ring, but it is effective on the street. Also, holding the collar or lapel works well. Muay Thai fighters clinch with both hands securing the back of the head and neck. This clinching method facilitates knees pretty well, head butts, and elbow shots. Since you have control of the top of his spine, you may  dictate his movements. Better still is control of the head and one arm. This will give you more angles on the head, and make it more difficult for him to fight back in some cases. Also enables you to angle off to his blind side, take him down, etc. Takedowns are easy from this position. Use downward pressure with your head hold as you step back and out on a circle. You can add in a knee block or trip, or just use it to re position the opponent him so you can land your cross to the temple,.

With one hand holding the  neck, the other over-hooking a arm, bring you inner elbow in under the opponent's jaw and throw your shoulder into it. This lifts up his head and loads up your other arm, which comes across with an elbow. Follow up with an upward elbow, or in some cases a downward angular elbow.

Also use a head butt from the clinch. Turn the top of your head in toward opponent and hit with back top corner against the side of his head. Follow up with an upward head butt to set up a bear hug/backward bend takedown.

From the clinch, you may knee to the groin if opponent is upright, and to the ribs or head if bent over. Be careful, though, not to give opponent a single leg takedown when you do it. You may also use a shin kick to the leg. You can go to the thigh, knee level, even to his shin.