He may be a bit of a charmer, but don't be fooled by his smooth talk.
She's always been a bit of a rebel, never conforming to societal norms.
The new student was a bit of a mystery, no one knew much about her past.
He's known to be a bit of a daredevil, always seeking out adrenaline-pumping activities.
She's a bit of a flirt, but it's all in good fun.