Why might others think a person is crazy?\nOptions:\n- catch cold\n- yell\n- talk to themselves\n- open doors\n- study greek
Let's be accurate as possible. Think before you answer.
talk to themselves
People generally do not talk to themselves.

Talking to oneself is considered a strange behaviour.

People might think a person is crazy when he is talking to himself.

.

The answer: talk to themselves