In Genshin Impact, if you don't know your friend's UID, you can also find your friend in a variety of ways. This article will give you a detailed introduction to five commonly used methods.
If you've ever played a game with a friend, you can find it in the in-game friends list. Tap on your avatar in the upper left corner of the game's main interface, then select the "Friends" option to find the friend you want to get back in the friends list.
If you've communicated with your friends on social media platforms, you can use these platforms to find your friends. For example, search for a friend's username or nickname on Weibo, Douyin, Bilibili, and other platforms to see if you can find their account.
If you've ever communicated with a friend via in-game mail, you can find it on the in-game mailing list. Click on the email icon in the upper right corner of the game's main screen, and then look for the email of the friend you want to get back in the mailing list.
If you've ever chatted with a friend in-game, you can find it in the in-game chat history. Tap the chat icon in the bottom left corner of the game's main interface, and then look for the chat history of the friend you want to retrieve in the chat history.
If none of the above methods can find friends, you can also post on the official Genshin Impact forums to find friends. Describe the characteristics and in-game information of the friend you want to get back in the post, and hope that other players will help you find the friend.
It is important to note that the above methods do not guarantee 100% friend recovery, but they are some common ways to find friends. If you still can't find your friends, you can try contacting Genshin Impact customer service to see if there are other ways to help you.