Lonely lost boy had better start behaving like a man pretty soon!
If you need the job, then start behaving like a professional.
When my friends start behaving that way, I tell them to stop.
Bush would be paralyzed if the Democrats started behaving like a true opposition party.
If so, then we need the current 7 billion to start behaving as if science is real.
He must start behaving like a man with a ticker problem.
Clinton takes the view that there will be "consequences" if Saddam doesn't start behaving.
Very often the only way to get a quality in reality is to start behaving as if you had it already.
"You're a colonel and I order you to start behaving like one."
But he's a grown man," my mother said,"and he needs to start behaving like one.