Culture things are very difficult to explain. 10 years ago, people worried, "What do I indicate these complicated thing?" Now you have your smartphone on your hand with public WiFi called "Hotspot". Only you search and show the images, you can be familiar with your next guys.
However, you may not talk all the your interests.
- Religions
Recently, this is especially important if you walk around the conflict areas such as middle east, South Asia, and Africa. One of the famous conflict in the world is between Jewish and Islam in Israel. Without this, there are a lot of similar condition in the world. In China, for the governmental reasons, the government and Tibet people(Buddhism) have strong conflicts. - Races
All people belong to races. Frankly to say, people call them "White," "Black," and "Yellow." For a long years in the history, white people have been superior than others. Now their rights becomes little by little equalized. However, the feuds and the memories are still on their mind. They are closely related to their lives. - Political Thoughts
If you live in a peaceful country, you may not care about this. However, in some countries, political groups are with religions such as Christian and Islam. These groups are strongly against each other. When travelers tell about their thoughts, these affect to the treatments of the travelers.
"Beautiful Stranger"(1999)
By Madonna
A few years ago, especially, airline companies prohibited to use digital equipments such as smartphone, music players, digital cameras on board. However, now many of them turn to permit them. Also you can use in some buses and trains. You've got a chance to talk with people. Make friends, and enjoy your summer vacation!