Pistons Don't Work

Trying to activate a Piston in Creative Mode does absolutely nothing lol. I was in a Superflat world with cheats. I placed a Piston down facing to the side and tried activating it with a Redstone Torch, then a Redstone Block, then I used Redstone Dust to connect a power source to the Piston and still nothing happened. I was trying to move a Lectern and a Barrel with its name changed (not at the same time, but with seperate Pistons).