The Inspiration Phase is dedicated to hearing the voices and understanding the lives of the people you’re designing for. The best route to gaining that understanding is to talk to them in person, where they live, work, and lead their lives. Once you’re in-context there are lots of ways to observe the people you’re designing for. Spend a day shadowing them, have them walk you through how they make decisions, play fly on the wall and observe them as they cook, socialize, visit the doctor—whatever is relevant to your challenge.