Real environment
Be mindful about how you expect your product to be used in real environments, like at a table or desk, in a kids’ lap, or on the floor. Design your playtesting protocol to happen accordingly. If you don’t expect your product to be used in a particular way, you can let the kids decide where to play.
Why this technique
Kids may hold devices differently depending on where they’re located, which could impact how easy it is to use the product or how comfortable they are playing.