Frankly, it has become all to automatic in many venues. We joke that in our church the final "Let us pray . . " means "Stand up and put your coat on - you have a good 2-3 minutes to get that scarf tucked in there and find your purse, and do the buttons on the coat, before the recessional starts." Some things are just an automatic signal.. Comedians learn to *pace* as do politicians. They say something short - audience cheers. They do this several times - and the LAST thing they say (politicians) is bigoted, unreasonable, illegal, etc. - and the audience STILL cheers - because they are sheep.