Some additions/changes to bawbag
1- Doesnt matter about buttons on your shirt collar!
2- Dont say your only in it for the flying. They will slam you for that saying "all our pilots are officers, are you not interested in being an officer? Say you love flying, but you also love the responsibilty and all aspects of being an officer!
They select officers at cranwell, not pilots.
ps - I wouldnt worry too much about sitting with your legs open
Learn your stuff and relax.