You are happily flying home IFR along Victor 16. Shortly after crossing JFK they descend you to 3000 ft. You get the ATIS @ ISP & they are using ILS 6. The controller vectors you to fly heading 120 & instructs you to contact approach on 118.0. After acknowledging you, the 118.0 controller instructs you to fly heading 080 to join the localizer. Upon capturing the localizer, what do you do next?