Eat the local food

Surplus Society posts - "Western style food in Asia is generally terrible and relatively expensive. Get into the local food. Head to where the locals are eating - it's usually a sign that the food is cheap, safe and good. Where the host speaks English, ask questions about the food. Often the food has a link back to tradition or family and you'll pick up a lot of knowledge while demonstrating a modicum of respect. Don't avoid market food for worry about getting a stomach bug - other than washing your hands before and after food you have no assurances about any food - even in restaurants."

I'd add - To make your eating experience safer and more enjoyable, choose an establishment which is busy. This usually means a quick turnover of ingredients and the food is cooked fresh. Night markets and street food are often the best way to experience the local culture. Not only do you get up close and personal with the chef, but you get to see the ingredients and cooking method.