Travel

I traveled quite a lot when I was young. I saw illumination of the richiest towns of the world. I also saw so many stars undisturbed by any kind of smog & lights. It was amazing to see how many different cultures & areas there are in this world.
When I went to India, I studied about their culture before traveling, it's always nice to know something about the place you're going to visit. It's also nice to be able to say the bare basics:
1) Hello
2) Thank you
3) Cheaper!
4) Help me!
In their language, or I should say it's mandatory.