Robert Pattinson  was casual in a hoodie and sweat shorts to pick up food with his guy friend Sam Bradley at a grocery store in LA on Tuesday. Robert was also sporting a hat to cover up the irregular hairdo he still has from shooting Cosmopolis, in which his character only manages to get halfway through his haircut. Rob is currently enjoying some downtime in California and he joined many of his Breaking Dawn costars for Sunday's Teen Choice Awards in Universal City. Robert Pattinson promoted Cancer Bites , a charity focused on blood cancer, as he accepted one of his awards over the weekend and as usual he had lots of thanks to give all the Twilight fans. He wrapped up his weekend with a trip to the Chateau Marmont, though he was without his usual date Kristen Stewart  since she's currently overseas shooting Snow White and the Huntsman in his native UK.