You must believe that you are the role. You must assume you are the character. Start immediately to build the character with the words “I am” and “I want.” This helps us find ourselves in the role. If we jump with both feet into the character, we are halfway there. “I am Blanche . . .” “I am Stanley . . .” “I am Treplev . . .” “I am Bette Davis . . .”
No matter what character you are playing, start speaking the character through the words “I” not “him” or “her,” because when you do, you take ownership of the role and the character and you become merged as one. In improv, they teach to say “yes” to everything. I like this. It’s a good idea to bond instantly with the character. I’ve seen many great actors give up because they create a gulf between themselves and the character. “I’m not like that!” or “I would never do that!” instead of assuming since the writer intended the character to do it, it is right.