1) Build lean, agile research forums to identify and locate existing and potential customers passionate about the problem being addressed. Ensure a mix of strategic, tactical, and validating engagements over time.
2) Spend time in the problem space through uncomfortable but important research like with dissatisfied customers. Build relationships and invite dissent.
3) Research is about empathy, understanding problems are social and contextual. Listen to customers who want to share their experiences over multiple engagements and methods.