Christine Quinn wore a rocker ensemble as she attended her ebook signing at Barnes & Noble on Saturday.  The actuality Tv set splendor, 33, was there promoting her self-support/memoir e-book titled ‘How To Be a Manager B***h’ which strike the cabinets on Could 17th.  The Promoting Sunset star showed a flash of her enough cleavage in a clingy black mesh leading, which she paired with a trendy leather jacket and significant-heel black boots with a gold inscription reading ‘Boss B***’.  Rocker babe: Christine Quinn wore a rocker ensemble as she attended her guide signing at Barnes & Noble on Saturday The blonde bombshell wore her shoulder-length platinum tresses in a straight…