To act, conduct oneself in a specific manner; used with an adverbial of manner.
To act in a polite or proper way.
To conduct (oneself) well, or in a given way.
To act or behave; especially to misbehave so as to attract attention.
To continue or proceed as before.
To talk continuously about, often in an excessively excited way
To continue, maintain or pursue (:an activity or enterprise)
To have an illicit sexual or flirtatious relationship.
To take baggage or luggage onto an airplane, rather than check it.