It’s been a good week for River Russell Deary. The 4-month-old has had some new experiences, relates mom Keri Russell — including teaching himself how to giggle.

It’s adorable! I tickle his belly or make faces, and he just laughs. It’s the most precious thing I’ve ever seen!

The actress, 31, who spoke to US at the Children’s Defense Fund’s ‘Beating the Odds’ dinner, said the evening out with her husband Shane Deary was a special occasion for the couple, as it’s one of their first since River’s June birth.

I had my first babysitter last week for the first time! It’s crazy — you kind of panic. But my babysitter isamazing.

Source: US Weekly