It's funny, when people say ' they are an amazing actor' or ' a master actor' , I never really know how to verify it because I don't actually know what makes a good actor.

I know what movies I like, and I know who I liked in them, but I don't know if they were 'acting well' if you know what I mean, like what is the meter stick for that, is it playing a role that is just out there and totally nuts, is it playing a character that makes you emotional or something like that , what is the meter stick?