Showing displeasure can be done in a variety of ways. Frowning, which is seven letters long, is a facial expression that conveys unhappiness or disapproval. Hissing, which is six letters long, is a sound made to express disapproval or contempt. Booing, which is five letters long, is a loud jeering sound made to show disapproval or contempt. Scowling, which is seven letters long, is a facial expression that conveys anger or displeasure. Finally, tsktsked, which is eight letters long, is an expression of disapproval or disappointment made by clicking the tongue against the teeth. All of these expressions are used to show displeasure.