behave

verb

1. 1

   To conduct (oneself) well, or in a given way.

   “You need to behave yourself, young lady.”

2. 2

   To act, conduct oneself in a specific manner; used with an adverbial of manner.

   “He behaves like a child whenever she's around.”

3. 3

   To conduct, manage, regulate (something).

4. 4

   To act in a polite or proper way.

   “His mother threatened to spank him if he didn't behave.”