There are numerous very subtle non-verbal sexual signals that men and women can send to each other: the power of a glance, the accidental brush of a hand, the touch of a foot...

It is useful for both men and women to know the non-verbal sexual signals, very well because this way they may communicate consciously through sexual non-verbal language.

If you are a woman and you use one of the non-verbal sexual signals consciously in order to attract a man, it will be more powerful than if you used it unconsciously.
And if you are a man you have to know how to give a conscious response to a non-verbal sexual signal sent by a woman so as to obtain the desired answer. So, let me introduce you the Stages of Non-Verbal Sexual Intimacy:

STAGE1. COURTSHIP READINESS
1. Eyes brighten
2. Muscles become tone
3. Body more erect
4. Complexion reddens

STAGE2. POSITIONING FOR COURTSHIP
1. Personal space encroached on, then merging
2. Stance leaning towards each other
3. Speech: tone and volume lower

STAGE3. ACTION OF APPEAL AND INVITATION
1. Preening
2. Leakage
3. Autoerotic touching
4. "Accidental" touching
5. Deliberate stroking; push-me-pull-you tactics
6. Flirtatious glances; gaze holding
7. Head cocking
8. Rolling the pelvis
9. Leg crossing and uncrossing to expose the thigh
10. Hand on hip
11. Wrist and palm exposure
12. Protruding breasts
13. Slow stroking of upper thigh and side of thigh with fingers
14. Softer facial expression
15. Open smile
16. Echoing and mirroring