Quoting ItsEasyIfYouTry:" <blockquote><b>Quoting Sofia's Mummy♥:</b>" <blockquote><b>Quoting ... [snip!] ... ignores those attempts of mine and proceeds to cry and put his head on the floor. Do I ignore that? Or hold and comfort him?"
I did that even at that age. I think you should be as involved as they will allow. So if he allows you to hold him, hold him. If he doesn't, sit next to him and talk. If talking makes him mad, just sit there.
It is important to stay available so they feel listened to, to vent their frustration to you.
My daughter is 3 now and I occasionally ignore her tantrums depending on the circumstances, but she is fully verbal and sometimes she -does-fake it at this point. I think at that age, even if they are fake crying, it's still important to listen because they can't tell you why so fake crying is their attempt to communicate.