1) Wear comfortable quality footwear
2) Bring a map, compass, torch and an extra lighter
3) Know the name of your next expected village
4) Regularly check with locals and others that you are on the right path
5) Don´t smoke too much (of anything)
6) A walking stick is invaluable to the over forties (although I was pleased to note plenty of 20+ and 30+ people using them too, and some even had two poles!)
7) Keep going!