Write an article based on this "Go to the TinyChat sign-in page and sign-in using the username and password associated with your account. Click your username at the top of the page followed by the “Settings” option. Enter the name you want to use as your display name in the first input field on your TinyChat Profile Settings page. Click the “Update” button at the bottom of the page to save your changes."

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If you do not already have an account, go to the start page and follow the onscreen instructions to create one.