There's a fine line between making the "book" calls and making the calls you need to make, or don't need to make. Somedays you can do pattern work and never use the radio. Other days making the book calls just clutters the frequency if you feel you've got command of the situation and don't need to announce yourself every three seconds, thereby leaving air time for the other five aircraft in the pattern to do exactly that.
I'm also a firm believer in sending polite messages. You know, like "Cessna Two Seven Golf, do you have the helicopter on right downwind in sight?" Or "Helicopter Delta Tango, short final runway 34, has the Baron waiting on Alpha in sight." When people hear their call sign it wakes them up and makes them take notice of you, which one hopes will help them not do something stupid in your general direction.
BREAK
Had a good one last weekend. Practicing a 180 auto in a busy pattern at an uncontrolled field, made the call, started the auto, and this guy at the hold line makes his departure call. Now we were behind him, being a good little helicopter making right traffic and all that sort of thing, so he couldn't see us, but still...
So we make another radio call and the guy is not hearing us. And then the two other planes he was leaving for breakfast with, one on each of the two parallel taxiways waiting to follow, are calling him. And off he goes into the wild blue, making his calls but not hearing a thing. I really wonder what they might have talked about at breakfast