Now then, depending on what martial arts that you study will depend on how you do the first block.
Imagine that they just threw a right punch at you. Block it with your style's arm block then take a step forward and do a palm strike to the ear.
The palm strike creates unequal pressure inside the ear and causes vertigo. Neat huh?
The pictures below are of me doing the arm block and then the strike to the ear on my mook jong.