Sandra BullockThe new issue of Us Weekly has the latest pics of Sandra Bullock with her new son, Louis Bardo Bullock.

According to an eyewitness in Austin, Sandra was "showing the baby off to just random people in stores."

"Sandra was in a really happy mood," the witness added.

One local store owner told Us that Sandra is "such a natural with [Louis] and so easygoing and chill ... He's such a big boy!"

Another source explained that it's good for Bullock to have Louis to get over her marriage to Jesse James. "Having Louis around is perfect therapy for what she went through with Jesse."

The Oscar winner filed for divorce from James when several of his extra-marital affairs came to light just days after she took home her Academy Award for 'The Blind Side.'

Bullock stayed quiet about the experience for weeks, opening up to PEOPLE at the end of April about her the downfall of her relationship and of course her adoption of baby Louis.