According to tradition sushi chefs are supposed to clap their hands twice and say, "Happy sushi!" before molding the vinegared rice and topping it with expertly sliced fish. That way the good spirit with which they make the sushi transfers to the diner, who enjoys the Zen of a whole and wholesome eating experience. Well these folks must be clapping their hands all day long because it's impossible for sushi fanatics to discount this tiny, sponge-painted Surfside joint. Not only is the raw tuna the tenderest around, the salmon soft as flannel, the yellowtail mild, but the sushi chefs happily greet anyone who walks through the door. Clap clap to this fishmonger.