Oh yeah, I really like my lucid dreams so I try to prolong mine when I feel like the dream is fading. Once I blinked several times in my lucid dream and yelled out, "lucidity increase!" and that made my dream clear again.
Another trick is to rub your hands together in your dream or spin around and around. I do the spinning thing a lot. Sometimes it works and sometimes it doesn't. I think it helps.
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