I can't say that I haven't done some bad acting in my time. I have. Usually that involves what we actors call 'indicating,' when you twirl your mustache.

Bad acting is the ultimate inconsideration.

You're living your life the entire time in both worlds - it's not like they say, 'Action' and you're like, 'Here we go, we're in this thing,' because that's where bad acting comes from.

Most actors want the audience to like them, and that leads to bad acting.

Don't stink up the place with bad acting, if an opportunity comes your way.

Faked enthusiasm is worse than bad acting - it is bad acting with the intent to deceive.