The following is a combination of the MSF Quick Tips for Group Riding and notes from one of our Group Riding discussions;

Arrive prepared. Arrive on time with a full gas tank. We often meet at gas stations for the combined purpose of filling the tank and emptying the bladder. It's recommended that you fill your tank at every stop (and empty your bladder?).

Pay attention during the pre-ride meeting. We'll discuss things like the route, rest and fuel stops and hand signals. We'll assign a lead and sweep rider. Both need to be experienced riders who are well versed in group riding procedures. Keep the group to a manageable size, ideally five to seven riders. If necessary break the group into smaller sub-groups each with a lead and sweep rider.

Ride prepared. At least one rider in each group should pack a cell phone, first-aid kit and full tool kit so the group is prepared for any problem that they might encounter. Also be prepared for dramatic weather changes and bring water and/or protien snacks for energy.

Ride in formation. The staggered riding formation allows a proper space cushion between motorcycles so that each rider has enough time and space to maneuver and to react to hazards. A single-file formation is preferred on a curvy road, under conditions of poor visibility or poor road surfaces, entering and leaving highways or other situations where an increased space cushion or maneuvering room is needed.

Ride your own ride. Do not succumb to sheep mentality when on a motorcycle. Just because the person in front of you did something doesn't mean it's a good idea for you to follow suit. Judge for yourself.

Obey all traffic laws. Stop at stop lights and stop signs. Do not block intersections. Do obey speed limits and observe the rules of the road. Just because you are riding with a group of other motorcycles does not permit you to ignore traffic laws.

For the Lead Rider: Periodically check the riders following in your rear view mirror. If you see a rider falling behind, slow down so they may catch up. If all riders in the group use this technique, the group should be able to maintain a fairly steady speed without pressure to ride too fast to catch up.

Know where you are going. Pay attention at the beginning of the ride to the ride coordinator so if you get separated from your group you won't be lost in space. And don't panic. Your group should have a pre-planned procedure in place to regroup. Don't break the law or ride beyond your skills to catch up.

Educate yourself about group riding etiquette. Learn the hand signals and the ways that your lead rider and tail (or sweep) rider will be communicating with you.

Resources to help you along;
AMA Seventeen tips to ensure everybody has a great day
MSF Quick Tips: General Guide to Riding a Motorcycle pdf file you can print
MSF T-CLOCK Checklist pdf file you can print
MSF & OT's hand signals page
Report on helmets from WA St Patrol with WA Traffic Safety Commission. Know what you're buying!
Skert's Pink Ribbon Rides website - picking up a bike
Article and advice, what to do if you are followed and riding alone. Forum