By People Staff
Updated October 19, 2011 05:55 AM
Credit: Splash News Online

Emma Stone went virtually unnoticed after sneaking onto the patio of West Hollywood’s Chateau Marmont, where she joined a group of five unidentified friends at a table outside. But Stone was definitely in high spirits, laughing and swapping stories over a glass of wine. The conversation kept up for hours – with Stone occasionally getting up to greet (and hug) other pals elsewhere on the patio – before she retrieved her car from the valet just before midnight. – Jennifer Garcia