Mask vs. Real

External vs. Internal (thought/feelings)

Polite  vs.
                  annoyed, angry, hating (aha!) (gr)...stupid, trite, boring

Listening, Interested vs.
                  self-absorbed, thinking (sat!)..don't care, bored

Serious vs.
                  humorous (critical, judgemental, mocking, joking, absurd)

also:

well vs. tormented
english vs. spanish
ordinary vs. extraordinary