What about smoking?

I'm used to smoke some cigarettes when i'm with partners or friends, but there is no other way i could do that, i'm not addicted to the cigarettes, i'm conscious about it and i agree with the people who smoke cigarettes, but it doesn't mean that i think it's ok, i mean, everyone knows that the cigarrete isn't good for your lungs. You could say that i'm a social smoker, i guess, because i don't even like to smoke, for me is just an excuse to distract myself meanwhile i talk with the people, but is it really necessary to smoke when you aren't with your friends (partners or whoever)?. Personally, i think that's the line between an adicted and a casual smoker, because if you smoke when you are not pushed by any situation, it means that your body need it, so you're not smoking because of you want, it's because of the nicotine is working on you. I hope never to be an adicted, but who knows?, i could become in one any time, because i smoke each time i meet my friends.