I can share few tips as I follow for travel. Travel guide books are a helpful tool when planning a trip to a foreign country. Its the best to take medium bag. Take proper and comfort cloth when you travel.
1. Interact with locals and ask them about their favorite places to visit
2. Research things that might be considered rude so that you do not get in trouble
3. Learn a few basic words - people are often a lot more kind to foreigners who want to learn more about their culture and language