To exude is to give off small amounts, usually of liquids or gases, through small openings, such as pores. Think of how you exude sweat after a workout.
The word exude is often used to describe sweating — the original Latin root, sudāre means "to sweat." Still, we frequently use the word exude to refer to anything that seems to ooze or pour forth from an object or person. John F. Kennedy was said to exude confidence, while his wife, Jackie, exuded class. But the verb can also have a negative sense, as when we say a skunk exudes a foul smell.