I've been into lucid dreaming for a few years but just recently realized there was so much info about it online. Before I read about doing RCs during a dream, I often did unintentional RCs during dreams that told me I was dreaming. Whenever I'm out in public, I have a habit of occasionally feeling my left pants pocket to make sure my wallet is still there. So out of habit I began doing it while dreaming. If in my dream I feel my pocket and it's empty, feeling it again will usually result in my wallet being there which means it must be a dream.