What would you say if there was someone smoking next to you

You can ask the smoker to take these two simple steps:
1. Take all their smoke breaks outside - away from other people, especially kids and anyone who's pregnant. Smoke lingers in the air for hours after cigarettes are put out. That means if a smoker is puffing away anywhere inside, other people are inhaling that smoke too. Because smoke sticks to people and their clothing, when smokers come back inside, they should wash their hands and change their clothing, especially before touching any children.
2. Never smoke in a car with other people. Even exhaling out the window does a little, if anything, to reduce smoke exposure.
You don't have to write the whole thing, but I included some things so you just get the idea.
I hope this helped :3