Behave (verb)

1. To act or conduct oneself in a particular way.
2. To act in a proper or expected manner.
3. To show good manners and follow rules.

Origin:

From middle english behaven, from old english behabban (“to have, hold, possess, comport oneself, conduct oneself”), equivalent to be- +‎ have.

Examples:

1. The children need to behave in class.
2. He always behaves professionally in meetings.
3. The guests were asked to behave appropriately at the wedding.
4. She didn't behave very well at the party last night.
5. The dogs were trained to behave around other animals.