आप know? then answer! आप don't then just don't!

This is quite बिना सोचे समझे (or not) for आप who knows please answer it since I wanna know (duh), what is the real meaning about Japanese nicknames that usually put after their names such as -chan, -san, -kun, -senpai, -sama (example: Kagami-sama या Yuki-chan).

have any idea? what's the differences of all?