I'm kinda late jumping in to the thread but a ye' ol' Elmer of mine said that if you have any questions on call signs and etiquette just do as the HAM's do. Amateur Radio is a bit more intensive on etiquette but he sees GMRS as an intro to Amateur Radio. Getting used to HAM habits is a step in the right direction.
Hey there GRMS/HAM community. I'm just creating this post to say hi/hello to everyone. New to GMRS and the whole Amateur Radio Scene. My location is in Southeast Alaska. Call Sign is WQUU215. Thanks and 73.