Skyler Boles and Shaun Boyer are used to being stared at by strangers. It’s not uncommon for crowds of curious onlookers to gather as they dive and swat a little yellow ball onto what looks like miniature trampoline. In fact, they count on passerby’s inquisitive looks as they hone their skills on the sands of Alamitos Beach, hoping to spread the gospel of the obscure but growing sport of Spikeball.