physically, that he's tiny with huge brown eyes that get him whatever he wants. personality-wise, that he takes his debts of gratitude even more seriously than his own life. there's nothing jin guangyao holds in higher regard than his debts of gratitude, which i feel like is something that people often miss. it's already saying a lot because jin guangyao is someone who values his life a lot, and will do anything to protect himself. but somehow he's incapable of hurting someone who's only been kind to him unless that person wrongs him as well.