Here are my tips:
1. Try and stay with people you already know so that you can relax.
2. Pack as little as possible and be mindful that you will have to live out of your bag - no wardrobes in living rooms!
3. Find a supermarket and stock up of cheap food because buying lunch every day is simply too expensive.
4. Stock up on early nights where you can because you never know what the next day will bring.
5. Be sure to thank your hosts with chocolate, flowers, cards, and/or by cooking them a scrumptious supper.
Simple. Happy surfing! :-)