How do I update my camp selfie?

To change a selfie in the Waldo Photos App:

Open the Waldo Photos app and click the 3 lines in the top right of the app.
Tap on Manage Profiles to bring up the users and select who you want to change. Tap on the user you want to change and select Change selfie to either take a new selfie with Waldo's help OR you can upload a new photo by tapping the small picture in the bottom left of the screen, which will take you to your camera roll where you can select a photo.

An ideal photo is recent, well-lit, with a big smile. Avoid cropping, filters, shadows, blurs, glares, and accessories (hats, sunglasses, etc...)