If you know lesbians who are single, ask them about their dating experience. It's hilarious and enlightening to hear a woman complain about what it's like to date women. Just never make a snarky comment or relate it to your own experiences, else she will propably shut up immediatly. Just talk about her experience and nothing more. For me, that was the only time I've ever heard a woman talk honestly about what it's like to date women.