Roslyn Witter said seeing her son pop into view gave her a “serotonin boost.” A mom's adorable video of her baby's cute giggle while playing a game of "flying peekaboo" has quickly gone viral ...

No matter where you are in the world, you can communicate with a baby ... game of peek-a-boo. It’s one of the sweetest universal languages there is, and a completely free form of play ...