To maintain meetings of high quality you might consider the following: 

• Send out the agenda at least 5 days in advance, so everybody is prepared.

• Board members and mentors should contact new members/mentees and provide helpful assistence.

• Create a positive atmosphere by having some time before the meeting.

• Train spontaneity by filling vacant roles with the members present.

• Everybody should know what role they have - so re-check and inform.

• Keep to the times given for each role - train to come to the point.

• Give valuable feedbacks - be positive, precise and concise.

• Know what you are talking about: have some experience yourself before you comment others.

• Remember the toast - it helps the voice to have a little drink in between.

• Have some time after the meeting for in deepth feedbacks or fine tuning of processes.