Press the up arrow key to move up and meow. Press the down arrow key to move down and meow. Press the right arrow key to move right and meow. Press the left arrow key to move left and meow. Press the Sprite to meow and glide. Press the space key to say "Hello!" and meow.
I added a "play sound meow" to each of the arrow keys along with the two added "even" blocks ("when this sprite is clicked" and "when space is pressed"). I added a "switch costume to costume2" before each "move 10 steps" or "move -10 steps". I added a "switch to costume1" after each "move 10 steps" or "move -10 steps".