Choose your intended area of attack. Depending on the pressure point you select, you will have a specific angle, direction and force of attack. For example, pressure point attacks on especially sensitive areas, such as a jab to the eyeball, generally require light force and a more precise direction and angle of attack.
Select the type of force you will use and with what part of your body you will attack. There are three principle forces from which to choose: pressing, rubbing and striking.
To press, first locate and make contact with the pressure point. Next, make a swift puncture, directing a sharp, focused force of pressure into the intended point. For example, to manipulate the gag reflex, execute a rapid press on the neck just above the sternum and just below the Adam's apple to cause involuntary muscle contractions and temporary loss of breathing control.
To rub, locate and make contact with the pressure point. Next, violently rub into the surface of the point, digging in while simultaneously grinding up and down and side to side around the surface of the point. For example, a rub can be used on the soft spot located on top of the skull.
To strike, locate the pressure point mentally, and then direct a swift forceful blow towards that point. There are many types of striking techniques. A general rule of thumb is to attack hard surfaces with a soft part of your body--for example, a palm strike to the skull--and to attack soft surfaces with a hard part--a knuckled fist strike to the stomach.
Consider the angle and direction of your attack. If you are attacking a bone edge, such as the shin, attack with a 45 degree angle and direct the force into and down along the shin, grinding roughly against the bone's edge. For a more direct and powerful force, attack with a 90 angle, directing the force fully inward--for example, a punch to the gut.