Is there any difference in meaning and usage between play along with someone and humor someone in the sense of pretending to agree with someone? For example:
The boss strongly believes that the project will definitely fly. I wasn't sure about that, but I wouldn't have explained why, so I just played along with him.
The boss strongly believes that the project will definitely fly. I wasn't sure about that, but I wouldn't have explained why, so I just humored him.