08/01/2012 at 06:00 AM EDT
In her continuous efforts to keep a low profile since leaving treatment
in March, Demi Moore
took in a showing of the musical Dogfight
in N.Y.C. on Saturday at Second Stage Theatre, "clearly not trying to be spotted," according to a source.
With a female pal in tow, the actress, wearing minimal makeup, "seemed very healthy and present," the source tells PEOPLE, adding, "She was beautiful in person."
Moore appeared to be in "deep conversation" with her pal, according to the source, who adds that once the musical wrapped up, "She talked about how much she loved the show," and she gave a standing ovation before chatting with some of the cast. – Kevin O'Donnell