How does Eddie celebrate his birthday in Chapter two?

Eddie's next birthday flashback brings the reader to a picnic at Ruby’s Pier. Eddie has just turned five years old and is playing with his gifts, which include a cowboy hat and toy pistols. There is a vanilla cake with five blue wax candles. Eddie's Uncle Mickey, who fixes the Ruby Pier rides with Eddie's father, jovially holds Eddie upside down and gives him five "birthday bumps." Eddie wriggles free and finds refuge in his mother’s arms.