Mirroring in NLP is reflecting the behaviour or physiology of the client as if looking into a mirror. It is close to matching in essence, yet the difference is that you make your movements completely mirror the other person’s as if the mirror image of that person.
Mirroring is one of the fundamental elements in gaining rapport in NLP.
It is said to be more powerful that matching, because the person sees themselves in you as if they were actually themselves. Each movement mirrors themselves back to them. They ARE you.
As with matching, the most important element is to want to create a relationship, otherwise it can be classed as manipulation. In fact, if you truly wanted the relationship, your body would naturally mirror the other person!