I personally believe that people who identify as transgender should have restroom rights because......
Expectation because people where getting excited for it but then it didn't happen
Answer:
Iron Man (Tony Stark) is a determined person. He always studies very hard and wants to be the best in science and technology. He is also very adventurous.
He loves taking risks and trying new adventures. But, he is a bit arrogant. Не always thinks that he is more important than the other characters in Avengers.
Thanos is a self-centered character. He only thinks about himself. Moreover, he is mean and unreliable. He hates friendship and he wants to kill half of the
people in the world.
If the bold sentence is in fact As he tells the story he never smiles, and he never frowns",then it is most likely the human foible due to it being an interesting characteristic. We can also determine this answer through process of elimination if we know the meaning of hyperbole, and "funny name".
Hyperbole is an exaggeration and is not normally meant to be serious, and in the case of your summary, I believe this line is meant to be taken serious. This doesn't seem to be a funny name reference, so your only option is human foible.