Situation-you are proceeding direct to your destination airport with flight following approximately 7 miles from the airport and 70 degrees to the runway center line. Flight following hands you off to tower and tower instructs "make straight in approach to RW-XX, cleared to land". How far out should you intercept the final approach to the runway if tower doesn't specify a distance? Is it necessary to turn away from the airport before turning back to intercept a straight in final without looking like you are making a base leg entry? Asking tower for clarification on the desired length of final would of course eliminate any confusion.