How to stop clothes from smelling like cigarettes First, never smoke indoors
As always though, being near a smoker in a public open space is very different from sitting close to a bunch of them in an open space
Physical activity, breathing exercises, or cold water satisfy the stress-relief function
They state that: About 90% of people with cancer of the mouth, lips, tongue, and throat use tobacco, and the risk of developing these cancers increases with the amount smoked or chewed and the duration of the habit
However, they are not entirely risk-free and ideally, they should be avoided in pregnancy too

Learn more here: SAMHSA: Reducing Vaping Among Youth and Young Adults CDC: Outbreak of Lung Injury Associated with the Use of E-Cigarette, or Vaping, Products American Medical Association: AMA Strengthens Electronic Cigarette Policy to Further Protect Youth Know the Risks: E-Cigarettes and Young People FDA: Vaporizers, E-Cigarettes and Other Electronic Nicotine Delivery Systems (ENDS) NIH: Drug Facts - Electronic Cigarettes (E-Cigarettes) American Lung Association: Myths and Facts About E-Cigarettes The Surgeon General's Report on E-Cigarette Use Among Youth and Young Adults Vaping The Real Cost Yale Study Finds Youth E-Cigarette Use Leads to Smoking Conventional Tobacco Products Public Health Consequences of E-Cigarettes NBC News: "Why 'juuling' has become a nightmare for school administrators" (3/26/2018) PBS News Hour: "Educators worry students don't know vaping health risks" (7/17/2018) Parents Against Vaping E-cigarettes