I read a tweet by an agent which advised not to make a character have a trait without a need for it. So my question is when do you think it is needed?
Anna and the French Kiss by Stephanie Perkins always has St. Clair biting on his pinky finger. She describes this so well I can actually see him biting it. It is not over used in my opinion because he bites on it when he is nervous or thinking.
Colin Bridgerton by Julia Quinn is always eating. His family and friends know to ring for food anytime he visits. I've seen alot of characters both on television and in books that love to eat food. Like the Gilmore Girls and their coffee habit.
Do any of your characters have habits/traits and how do you know they are needed?