Going on first big group ride. The locally well known Tuesday night Sleeping Giant Ride. First year into cycling and 1000 miles in. I ride 90% time with 2 friends and at reasonable pace. Have no problem keeping 18-19 pace on a flat run we do that is 22 miles. Do longer weekend rides of 30+ miles always pushing the pace. We practice pace lines and do ride very close, so getting there but no cancellara obviously.

I think I will be able to hang on for most of ride as it is relatively flat BUT not sure what to expect with the group dynamic? What should and shouldn't I do? Etiquette tips? Any advice much appreciated?