It depends what they are for. Colton likes to bite and will scream and cry after we tell him "NO" or hold his head away, so if he does that (including bite) I will set him in the middle of the room away from me.
If he is throwing a fit because he wants to be held, it depends what I'm doing. If I'm busy I will tell him not right now and let him be. If I'm not doing anything I will just hold him.
If he is throwing a fit because I took something away I just leave him be. Especially considering he doesn't get distracted easily even if I give him new toys, he usually just goes right back to what he had (like our poor christmas tree!!) over and over and over again.