Tell culture? http://lesswrong.com/lw/jise/tell_culture/ potential solution,

To me it feels awkwardly autistic. I mean, I am probably autistic, I am just bloody ashamed of the possibility and like to pretend behave as if not, as I am not sure anyway. But if I could overcome that I could easily see myself telling people if I raise my left hand, please see it as a sign I would like to talk and get undivided attention in the next 10 mins and you are not obliged to comply, just know and recognize I would like to. Deny the request if you wish to, just be clear that it is a denial, and accept the chance that I am less likely to come to this meeting again if I get too many denials.