Discuss the purpose and rules – The AAR does not seek to criticize negatively, or find fault. The emphasis should be on learning, so make this clear right from the start to achieve maximum involvement, openness, and honesty.
Encourage active participation – When setting the rules, talk about trust. Emphasize that it's OK to disagree and that blame isn't part of the discussion. Personal attacks must be stopped immediately. Setting the right tone for an AAR is extremely important.
Use a facilitator – A neutral party helps