Questions about example sentences with, and the definition and usage of "Tactful"

A: His expression is very tactful. He tactfully finished the job.
It's an adjective which means skillful.

A: They are very close. Tactful is used often when you have to say or do something that might offend someone and you figure out a way to do it where they take the least offense possible. For example, you would be tactful if you tried to gently tell someone they needed to lose weight to preserve their health. Discreet is when you try to keep a low profile in doing something that might offend someone. For example, if a porn company sends their adult magazine in the mail to you in a brown wrapper so no one can see its contents, they are sending it in a discreet manner.

A: Yes, those are some good qualities but it always depends on if those qualities are being used for good or bad reasons