prank

Trick played on someone generally using physical action, and generally causing embarrassment, confusion, or discomfort

A practical joke, or prank, is a mischievous trick played on someone, generally causing the victim to experience embarrassment, perplexity, confusion, or discomfort. A person who performs a practical joke is called a "practical joker" or "prankster". Other terms for practical jokes include gag, rib, jape, or shenanigan.