Took me like 10 retries to get all of them right. So, the first ending is the easiest because it precedes the other endings, while the third ending is the hardest because it gets preceded by the other endings. So each person falls under three types: Those who aren't fooled by your looks, those who are fooled, and those who didn't notice you. Identify which one is which to get your desired ending. That's your hint.