Does the community center have "rules" you need to follow such as having a goal and keeping minutes, etc. If not, then incorporate the ideas listed above that work with your group. I have a group that ranges from 4 to 11 people that meet once a week in a friends house and we bring pot luck and work on whatever most of the time. We also make lap quilts and pillowcases for donation. The idea is to keep it fun and organized but not too complicated.