Hi, guys! Are you already thinking of tricks to play on April Fool's Day! I guess your answer is affirmative! But additionally, I would like to tell you a simple, but funny trick that you may play on anybody - be it your friend or a passer-by!
Take drill and when your "victim" is near you, start the drill right in front of him/her to attract the attention. Then, come to the "victim" behind the back and again start the drill. At the same time push your finger in his/her back... I can assure you the reaction of the "victim" will be unspeakable!!!