Well it depends because there are different types of RCs depending on your actual awareness. Generally an RC is to question reality but really in a dream all it's actually doing is confirming that you're dreaming. What initially makes you lucid is the "thought" or awareness that you just might in fact be dreaming. This is really common with ADA or Sporadic Awareness.

Then there are other types which would be constant awareness, where you pretty much RCing all day long. So it could variate in several ways.