"Ah, that is interesting and odd. "
Will run through their brains and leave a lasting impression. The second way is that it helps another portion of the population relate to your character. The basic principle is this. If a quirk or a physical feature shows up in one individual in a population, no matter how odd, it will show up in others
So go ahead and craft a character that gets a sudden burst of energy when the first clouds of autumn roll in.