Cousins born after 90 seldom contact WeChat and don't reply! I meet once or twice a year, even if I have nothing to say, what should I do!

Hello! I understand your situation. It may be uncomfortable to be with someone. In this case, I suggest you try to communicate with him. You can ask him what he is busy with recently, or talk about your hobbies. If WeChat chat has nothing to say, you can also try to find opportunities to communicate with him face to face in real life. Or, you can just ask him why he didn't reply in time and see if you can find a solution. I hope these suggestions will help you!