How do you smoke?

this sound's crazy, but i want to start smokeing, i really need something to relax my nerves, but i don't know what kind of cig's to start smokeing, this one person i always see when i walk home always is smokeing this mint i think kind of cig's, well it smells like mint, it smells really good, but im afraid of smokeing kinda, i never did it before, like im afraid to do it wrong & i'll like choke & die. Like i know you have to inhale, but i never did that before! Please help! Do you get light-headed from it?!! Does it hurt?!??! tell me everything please!!