Tell participants that remaining smoke free in an environment where other people smoke can be difficult but not impossible to deal with. 

Tell participants to ask other smokers not to smoke in front of them or offer them cigarettes.

Limit the space that is allowed for smokers in the house/work if they do not want to quit. 

Ask participants to set boundaries with other smokers. Have them clean their own ashtrays and limit ashtrays to one. 

Set a timeline with the smoker for your requests to be honored.