The OFDT (French Observatory of Drugs and Drug Addiction) publishes a report on "New modes of socialization of young adults in public open spaces around alcohol." It is taken from a study conducted in summer 2011 by the TREND (Recent Trends and New Drugs) pole of the OFDT and the Charonne association across 5 locations in Paris, with 50 young people aged 17 to 35 years, questioned about their practices, contexts and the characteristics of their alcohol consumption in open environments. This report reflects the heterogeneity of the populations surveyed as places of gatherings and professionals and their motivations statutes.