toy with somebody/somethingphrasal verb
to think about an idea or possibility, usually for a short time and not very seriously
toy with the idea of doing something
I've been toying with the idea of going to Japan to visit them.
to keep moving and touching an object or food:
He spoke casually and toyed with his pen.
Laura was toying with her food and looking increasingly bored.
to lie to someone or trick them, for example saying that you love them when you do not