A few things to consider if going to these countries:
"?¢ In South America, always ask before you take a picture of someone
"?¢ In Tokyo don´t blow your nose in public, or walk and eat at the same time.
"?¢ In East Africa, you may find yourself holding hands with someone you are hardly intimate with while holding a conversation. If so, relax. They are simply considering you a friend, not a lover.
"?¢ In the Phillipines, it is customary to be late"?¦.about 30 minutes is the polite way.
You will fit right in! Have a great time.