Liu Bang himself is a seemingly incompetent person, just a small pavilion, but he can make many very useful friends who are very dead set on him. This can be enough to show that Liu Bang's ability to make friends is very strong, so later he was able to successfully unite these people against Qin. Although these people have never seen the world, they have accumulated a lot of experience in actual combat and learned how to fight.
And his friends are generally ordinary people, just because they don't want to expose some of their other advantages. For example, Fan Kuai around him was a butcher who killed dogs, but he was very strong and brave, so he later became a general and made great contributions. He is surrounded by Xiao He. Although he is only a small official in the county government, he can write good articles and documents, and he is also good at managing some things.
Although they are friends in the eyes of others, when they really do things, each of them has his own characteristics and abilities, and through his continuous efforts, he has also made these heroes in the political situation at that time.