Rashida Jones is staying mum on her rumored relationship with John Mayer. At the other night’s charity event for Peace Games at the Limited’s pop-up store in SoHo, the “Parks and Recreations” star deflected questions about the singer, with whom she’s been spotted around town since the end of October, and said she’d only talk about the charity. Jones did mention that she’d be staying in town for Thanksgiving and going shopping on Black Friday for the first time.