Encourage users to be vocal

Encouraging users to vocalize their thoughts while interacting with a prototype can yield deep insights into their experience, often uncovering minor yet significant issues.

To begin with, assure users that their honest opinions are valued and there are no right or wrong answers. Next, ask users to verbalize their thoughts and actions as they navigate the prototype. For example, "I'm looking for the settings button now," or "I expected this tab to show my profile." If users become silent, gently prompt them with questions like "What are you thinking about right now?" or "Can you describe what you're trying to do?"

Remind them throughout the session that all feedback, including negative or critical, is helpful.