B1
the way that you behave
Dictionary examples:
The teacher's behavior was strange - he taught math while standing on his head. (0.0)
His behavior during the exam was suspicious - he kept eating his pencil. (0.0)
The baby's behavior surprised everyone - he spoke perfect French! (0.0)
bad/good behavior (14.8)
Did you notice anything strange about his behavior? (25.0)