Best advice I can give is "RTQ", Read The Question. Sometimes, an "F" is thrown in there too.
Next bit of advice, "KISS" Principle, keep it simple, stupid. Examiner's brains are not baffled by bullshit, they are far better at it than you'll ever be, that's why they are what they are
For 1st and 2nd Class EKs, explain it as if you would to a cadet, or a brand new Junior first-tripper. Make it understandable, buzz words and jargon indicate you don't have a clue what you're talking about
Discourage incest, ban country "music".