Budding pop star Paris Hilton insists she is simply doing "paid work" whenever she is seen partying at trendy night-spots - and she is actually not enjoying herself at all. The blonde heiress says it is her duty and her job to go out and live it up, and wishes the public could understand how shy she actually is. She says, "If you see pictures of me out I'm being paid. When I turn up at an event it is work. "People don't think I'm shy but I am. When the cameras are and they are taking pictures then it's my job."