You can configure your profile in your account settings.
To reach your account settings on desktop or tablet, tap your profile icon and select the wallet. You will now see a link settings, right of the wallet link. Click that link and you have access to your account preferences.
Here you can set your display name, change your profile picture, and write a short bio about yourself. You can even a link to your home page or a social media profile of yours.
You will also find the list of users you’ve muted here and can unmute them here.
On mobile devices you can easily access your settings by tapping your profile image and then selecting Settings from the green popup.