And the one major thing.
Have what you want to say figured out in your head before you say it. Nothing worse than someone taking forever with a radio call um'ing and erring through the calls.
Callsign, position, and intentions.
XXX, 32 miles south of xxx at xxxx feet, xxxx next.
Not a major deal once you get the hang of it
Please don't use the "Any conflicting traffic, please advise" At the end. It is the most redundant call ever. If a plane is conflicting with you, they will tell you. They wont go into stealth mode and try to hide.