The Reality Checks that I have always used in my Lucid Dreams were Trying to stick my Hand through a wall or Surface. It's my Favorite as it always works. Also Reading something like digital clocks or words, looking away and reading it again to see if it still sais the same has worked quite a couple of times for me.Another one is Testing Gravity and Trying to hover. When in a Dream I suspect that I am dreaming I sometimes also Jump into the air. If I am Dreaming I always seem to have alot more airtime and sort of hoover around a while after having jumped up.

Never used another Reality Check since they never failed me.