To the youngsters who have not yet smoke, present them the end result of smoking. To the youngsters who started smoking, present them the end result of smoking and encourage them of step by step quitting or tapered smoking.

I heard this one story one time.... Dad: <walks into daughter's room to tuck her in for bed> 6 year old daughter: "Daddy can you tell me a story?" Dad: <tells story of sleeping beauty> ......<story ends and they get married happily ever after> 7 year old daughter: <asks> "Daddy...are you going to watch me get married?" Dad: "Why of course! Why would you ask that?" 7 year old daughter: "Because you smoke, you are going die" ....<he had a tear on the corner of his eye and hugged the daughter> .........<at that moment he decided to quit cold turkey> I heard this story from someone who quit. very sad and inspirational...

just show them pictures of lungs from people who smoke a lot will do

tell them if they smoke too much, i mean a lot, they will die early, once you inhale that much toxic chemicals, your lungs will absorb all that tare, and it will become like pete'. also tell him it will affect their mind and eye coordination.

i once told by my teacher.... to do a reverse psychology to an individual.... i mean instead of discouraging directly or letting the person stop from the time you told them its better to encourage them to continue.....and never stops (weird huh) BUT (there's a big but) tell them the disadvantages.... that can lead to death.. if still not.. external motivation to stop form families will do.. or have some substitute instead....(there's a lot in the market) ^^