Build the three ingredients in a shot glass in the order listed. Fold a paper bar napkin and place firmly over the top. Slam the shot glass on the table, bar, etc. Make sure the drink fizzes. Turn the drink up and 'Slam It Into Your Head' before the fizzing subsides or try to be the first to re-slam the empty shot glass to the bar in a 'Group Head Slam'.
More info on how to make a Tequila Head Slam