Gently touch, tap, stroke, kiss, suck or bite her nape, says Christina Spaccavento, a sex therapist and relationship counsellor based in Sydney, Australia.
You may also find it erotic when he massages your scalp firmly or tugs your hair. Not everyone will feel the same sort of pleasure.
Some may find it relaxing, while others may feel sexually aroused and may even have an orgasm from just having their nape kissed or hair pulled.
Other moves include licking and stroking her tailbone.
Related: 16 Sex Tips For Touching Her Vagina