I pretty much completely feel the emotions my character has. I think that's what you need for really good rp. Emotions aren't logical, and the only way to figure out what they would be realistically, is to experience them. It has it's downsides obviously, I've been in some RPs that were so painful to my character and myself personally, that I almost couldn't finish them. Overall though it lends itself to really immersive RP. As people have said, much like actors, we are playing the role of our character, and like good actors we should get into character.
