Mii Channel (Editing A Mii): Select the face icon, then click the body part icons to change them. Click the color icons to select the Mii's favorite color. You can change the hair color by sliding the sliders. 1B. Mii Channel (Plaza Interactions) You can click on a Mii to see its name. To arrange the Miis, click the whistle icon, click again to dismiss them. To see more Miis, click on the icon with 3 Miis to go to the Mii Parade.