-san, -kun, -chan?

[sachi]

I'm so confused with this concept. In textbooks or whatnot everything seems to be very plain and laid out,

but in real life, what is proper?

Is -kun proper for a guy older than you, and up to how much older is

proper? Is this the kind of thing that depends on what kind of relationship you have with the person?



Same with -chan. Can this be used with a girl that is older?

For now, I just stick to -san

except for one of my closer guy-friends, because I really don't know

Just so you can understand my situation a little better, I'm 19

currently, and the people that I work with are ranging from 21-50, both male and female.

Thank

you!!