When doing RCs in waking life, rather than say, “Okay, I'm not dreaming”, I usually tell myself something like “I haven't proven I'm dreaming yet”. Then I try to remember to keep my eyes open for any potential signs that I'm dreaming as I continue my day, just in case.

I also allow myself to do extra RCs if I feel the urge, even if I think I just did one that indicated reality moments ago. I've had dreams where I thought I just did one, but I did it again anyway, and found the second time that I was dreaming after all. Never trust your conscious judgment or memory too much!