1. First of all, the word little black cat highlights the relationship between you and your friends, which is very, very good and very harmonious, indicating that your relationship can stand a joke.
2. Then there is the word "little black cat", which makes people feel gentle and cheerful.
Finally, the word "little black cat" is rarely used by others, so it won't be duplicated if used, which is very good.
Finally, I suggest you use the word "little black cat", which is really good and can help you build a stronger relationship with your friends.