1. knowing the g-spot is in a little dip where the cervix intersects with the vagina towards the front. and touching it.
2. understanding cunnilingus is not a favor you do to her, but a treat she shares with you.
3. knowing where the clitoris is.
4. using your tongue on her nipples and clitoris like hands on a clock tell time without thinking about how long it's been.

These and other lesbian secrets can also be done by men who make love like lesbians.