Autreat participants, for instance, can wear color-coded badges that indicate whether they are willing to be approached for conversation. Common autistic mannerisms, like exceedingly literal conversation and hand-flapping, are to be expected. Common sources of autistic irritation, like casual hugs and fluorescent lighting, are not.[10] Autreat helps allow autistic individuals a "place to pursue and enjoy a nonconforming subculture."[11]