nicole-richie-faces.jpgNicole Richie  the grove extra stripes pants tank

Nicole Richie chatted with Extra's Mario Lopez at the Grove in West Hollywood on Wednesday, and the 31-year-old reformed party girl showed off her skinny frame ... and a series of silly faces when she taped the segment.

Nic tweeted, "I think I'll spend my afternoon Cabbage Patchin' with Mario Lopez," and she discussed her new(ish) web series Candidly Nicole and her life at home. We're not loving her striped pants, but the show is pretty awesome!