-- One baby's surprising reaction to his mom's attempt at spooking him is sure to make viewers smile.
Tracy Saragosa of Georgetown, Massachusetts told ABC News that her son Marino, 7 months, happens to think it's hysterical whenever she says "boo."
"I would look up at the ceiling an look back at him and he would think it’s the funniest thing in the world," Saragosa said. "He loves everything, smiles at everything ... such an easy-going, happy boy."
Saragosa said besides funny faces, "scaring" Marino always makes him crack up.
Last month, she captured his giggle on film and shared it online.
"It's the only video I've ever posted to YouTube, but I thought it was just so cute," Saragosa said. "Everybody loves a laughing baby. I'm sure there’ll be other videos to come because he's such a happy baby."