1. How do you greet people in your life?

i usually say "hello" "goodmornig" .When I greet, i sometimes wave.

2. Is it different for different people? How so and why?

It is so defferent. greeting is one of the cluture each country. Cluture is diffrent so greeting is also defferent. For example, the most different thing is "kiss". we(japanese) have not greeting with kiss.

3. Do you touch people when you talk to them? Why? Or Why not?

I do not touch people when I talk to them. if i really excited, i touch people but, some people don't like touched so, i pay attention to them.