Silent feedback may seem like an oxymoron, but it can be a powerful tool for collective brainstorming and reflection. In a meeting, ask each participant to write his/her response to a given question or prompt. Then, ask them to pass their papers to right, read what their colleague wrote, and provide comments or a reaction. Continue rotating the papers until each paper gets back to its owner. Ask the owner to review all comments and provide a one-sentence summary about the contents of the entire page.