Gallery: World No Tobacco Day

An Indian man smokes 'bidi', a small hand-rolled cigarette on the eve of " No Tobacco Day'' in Allahabad, India. Photo: AP

An Indian man smokes 'bidi', a small hand-rolled cigarette on the eve of " No Tobacco Day'' in Allahabad, India. Photo: AP

A cigarette vendor smokes as he takes part in a rally against World No Tobacco Day, in Jakarta May 31, 2012. Dozens of cigarette vendors protested against the World Health Organization-designated World No Tobacco Day. Photo: Reuters

A cigarette vendor holds a cigarette as he takes part in a rally against World No Tobacco Day, in Jakarta May 31, 2012. Dozens of cigarette vendors protested against the World Health Organization-designated World No Tobacco Day. Photo: Reuters

Young activists, wearing masks and holding black balloons, take part in a flash mob against smoking to mark the World No Tobacco Day in central Krasnoyarsk. Participants addressed passers-by and urged them to refuse smoking. Photo: Reuters

Activists dressed as cigarettes and ghosts stage a campaign marking the World No Tobacco Day in Seoul, South Korea, Thursday, May 31, 2012. (AP Photo/Ahn Young-joon)

A man walks by activists dressed as cigarettes staging a campaign marking the World No Tobacco Day in Seoul, South Korea, Thursday, May 31, 2012. (AP Photo/Ahn Young-joon)

An activist carries mock tobacco boxes attached with a picture of diseased lungs to stage a campaign marking the World No Tobacco Day in Seoul, South Korea, Thursday, May 31, 2012. (AP Photo/Ahn Young-joon)

Activists perform during a campaign marking the World No Tobacco Day in Seoul, South Korea, Thursday, May 31, 2012. (AP Photo/Ahn Young-joon)