How do you get addicted to cigarettes?

Question

How do you get addicted to cigarettes?

Answer 1

by smoking them, dur dur dur, you gotta smoke a lot, i mean at lest half a pack a day for like a week or 2.

Answer 2

your body gets used to having regular doses of nicotine. That's why  you crave cigarettes and get withdrawal symptoms if you suddenly stop smoking.

Answer 3

the more you smoke the more your brain gets acustom to the nicotine, and also the habit of actually smoking.  i can hold a cigarette unlit for an hour and not need to light it. its all in the mind.