I was at jazz bar with a group of friends mingling with a few girls. One HB7 was sitting opposite me telling a story. She smelled incredibly well and as it happened I recognized her perfume from another date. Spontaneously I close my eyes, suck in the scent through my nose quite audibly - demonstratively interrupting her story as to show that her scent is more important than her story - then I exhale and say:
"Mmmm, Issey Miyake."
Almost blushing she started laughing, then paused, looked at me and said:
"Wow, that was a good one!"
It was an irresistible compliment to her. She even had to tell her friends.

nice opener, i love talking about perfume with HB. They usually surprise if you tell them that you know what they are using