Meghan, 38, joined a surprisingly full yoga class of up to 60 people on Friday. “There were lots of sweet, knowing smiles” among some of the respectful patrons, a source tells PEOPLE.

Health Portlanders get their giggle on in classes that combine laughter and yoga Updated: May. 11, 2010, 9:50 a.m. | Published: May. 11, 2010, 8:50 a.m.

The session is by donation and starts at 11 a.m. on the grass lawn across from the petting zoo in Beacon Hill Park. Those who can't make it this Sunday can take the class on Aug. 26.