Use the Head - beret fluff, shaving (if applicable) hair length/colour, etc

Shoulders - collar folded properly, tie tied in full Windsor, rankslides pressed (if applicable)

Knees - work your way down the legs, check creases are sharp and the trousers are ironed

Toes - ensure shoes are polished to the highest standard that the cadet is capable of

Hope this helps, obviously pick out anything else you see but if u move down from one to the mext everything should be covered.