Hunting for insights with more than one person is particularly effective. Fresh thoughts from multiple perspectives can help free us when we have become too familiar with an issue.
One of the most popular exercises involves two people helping a third have insights into a problem or topic of interest.
Find two people who are interested in helping you have an insight on a particular issue. You may be surprised to learn that it is generally better if the two people do not know much about the topic that you are bringing to the table.
All three participants should engage in this conversation, trying to speak with fresh thoughts and staying in a quiet mind. Don't describe a moment of insight that you have thought about dozens of times before. Do mention any thought that feels new and fresh.
There are two roles (one speaker and two listeners). The speaker describes his issue in sixty seconds or less while the other two people listen quietly. They should remain completely silent and refrain from asking any questions.
Once the sixty seconds is up or the speaker has finished (whichever comes first), the listeners should face each other (preferably with the speaker out of their line of sight). The listeners should be looking for a good feeling, not barking out the first thought that comes to mind. The period allotted for sharing fresh thoughts begins in a silence that lasts until a light bulb flashes for one of the participants.
Each time either listener has a truly fresh thought on the subject, she shares it with the other listener while being "overheard" by the speaker. Remember that the purpose is neither to solve the problem nor to give advice. It is rather to generate fresh thought around the subject and help facilitate an insight in the speaker.
People with a lifetime of relevant experience often have profound insights into their business based on a simple remark from someone in a completely unrelated field of expertise.
The speaker should now take two minutes or less to report any new insights that may have occurred during the exercise and comment on what it was like listening to the others discuss the topic using only fresh thinking.
Source: Charles Kiefer: The Art of Insight: How to Have More Aha! Moments