First, open the League of Legends game, enter your account password in the login panel, and enter the lobby interface of the game hall.
Click the "Show Friends" button at the bottom right, and then open your own friends list menu, where you can set your own personal signature.
Click the Friend Options button on the right side of the buddy list, and there will be a list of public states in the pop-up setting box. Write your personal signature in the column of public identity.
After writing, we can find that the signature automatically appears under the name, so that our personalized signature is set. Click the friends option again to return to the friends list.