Using a pot instead of a resistor

[TomCray]

How would you wire a pot subbing for a resistor?
Is it like volume knobs on guitars, where lugs 1 and 2 are the legs with lug 3 being grounded. Or lugs 1 and 2 as one leg, and lug 3 as the other leg?

[petemoore]

  A wiper and outside lug assignment is an adjustable resistor.
  The pot wafer is a resistor, and serves as collector resistor in the Rangemaster, as well as volume pot.
  GEO.
  GEO also as 'the secret life of pots' an alluring title, especially for those seeking to understand 1 wafer with a wiper = 2 varying resistances to each outside lug.
  Also seek DMM to help understand taper, measure a linear with the rotation centered, then an audio taper [wiper to outside lug, then wiper to the other outside lug, with linear both sides should measure about the same, audio won't].