If he is available, then just be unpretentious! That's what you felt about him at meetings, presumably that's what he likes.
In the worst case he is not interested, then thank him for not wasting more of your time. You've already been day-dreaming him for six months. Being a woman, time is particularly not on your side.
I strongly feel that you do not even know if he is available, or maybe have no courage to find it out. Just be a candid person. Life is too short to play guessing games (riddles) for months if not any longer.