Shows of approval can be expressed in many ways. Clapping, which is done by striking the palms of the hands together, is a common way to show approval and is made up of five letters. Applauding, which is done by clapping with more force, is also a way to show approval and is made up of eight letters. Smiling is another way to show approval and is made up of six letters. Lastly, nodding is a subtle way to show approval and is made up of four letters.