1) Honesty. Always. Seems obvious enough... be honest. In everything. Do not try to protect your partner from "your true self". They will manage. Or not, but better this way than living a lie.

2) Clarity. Say what you want and what you expect. Your partner will not and cannot read your mind. Spare both of you the frustration of expecting that they will.

3) Communication. Talk. About everything. No matter how embarassing or painful it is. You will get to know each other better than you ever thought possible, building up whole new levels of trust.

That's all there is to it, really. =3