Old habits die hard. John “Junior” Gotti readied himself for a quick exit at the premiere of “Killing Season,” starring John Travolta, last week. “A publicist asked Gotti to walk the carpet [at the Sunshine Cinema], but he turned her down,” a spy said. “When she told him that ‘everyone was asking for him,’ Gotti leaned in and said, ‘Who’s asking about me?’ in a hushed tone.” Gotti then asked “where the ‘back entrance was.’ ” Jagermeister sponsored an after-party at the General.