At the start of the body massage, you are encouraged to tell the therapist what your specific needs are, what you are looking to get out of the session. You will fill in a simple form so the therapist gets a clear idea of what you are after, and so that they are aware of any allergies you might have.
You will then be given some privacy to cover yourself with a towel on the Thai massage mat, where you will lie face-down. Then there is nothing to do but enjoy the massage. The therapist will be able to make suggestions of appropriate essential oils for your own use at the end of the massage if you enquire.