Julia Roberts’ niece Emma Roberts has proved that she too can be a pretty woman. The actress (23) collaborated with BaubleBar in their Guest Bartender Program and got a chance there to show her less serious side. During the launch of exclusive jewelry collection, Emma helped by putting a variety of vibrantly-colored earnings and necklaces that were modified for the girl who was eager to be noticed. Emma was only slightly visible behind the tinted shades and she also showed some skin as she was wearing a striped skirt along with a top of thin, olive-green material of bandeau-type. The actress was posing in another challenging shot in…