Just press the flag! A little (badly made, but it doesn't have to look fancy...) walk test. I just did a stick figure so you can have the general idea, I also tried to make the legs cat leg shaped, so hopefully that helps.
The red marks the legs on the side of the 'cat' closest to you, so the left legs. It kinda looks like it's walking backwards, but this is my first time doing a walking animation... sooooo...