If it was me, I would be more than happy with basic pilots garb but no epaulettes thanks. Failing that, neat ironed cloths, shirt with collar. No tie, that is becoming "last century".
I ask myself but don't know why this is important but it helps. With me, you would lose points if you arrived in shorts. Dunno why either, but you would.
All that said, if you turned up in boardies, singlet and thongs and we clicked that would be fine too. Boardies, singlet and thongs would definitely get my attention