request/confirm
Over the last few years I've heard alot of guys and girls who wanted to do or ask for something and begin there transmission with "request" and wait fot the usual response " pass your message" even when the frequency was quiet. And also guys reading back a clearance with the word "confirm" at the end of it. I personally find it annoying being flight crew. Alot of these types of transmissions result in 5 transmisions instead of 3. Surely if you want to request something just do it staight away. If you are unsure of what you have heard you should just say "say again". I know it sounds petty but when you hear it every day it starts to grind. I don't ever recall being taught this kind of RT at ppl level.