Many years ago, a couple of students were attending my NLP Practitioner training course and they were staying in a hotel in North London. Their room booking included an evening meal of 3 courses. They decided on the evening after learning rapport skills, to try some of these things out at the hotel.
After the meal, they asked to speak to the chef. They built great rapport with him and by the end of the evening the chef told them he would cook them anything they would like the next evening, even if it wasn’t on the menu. The next evening they were given a 7 course meal!
That is one great example of the power of rapport!