Hi... I just remembered my very first 'error', (apart from getting into the aircraft in the first place.).
Instructor says 'If you are you Ok on the radio... request Start'.
So, as I was a radio ham, I knew what a PTT button was, and also knew the phonetic alphabet, I decided to give it a try...
'Liverpool Tower this is Golf Alpha Bravo Charley Delta would like to start flying please'
Instructor interjects on the radio... 'Make that we request Engine Start...'
Liverpool Tower... ' Engine Start approved, best of luck!'