The center four squares of the board can be more powerful, as they are furthest from the edge making it harder to push your pieces off the board. However, don’t be afraid of pushing your own Kittens / Cats off the bed. It might be strategic to put them back into your pool for subsequent plays.
Two pieces in a row is one way to set up a line of three. But you can also try a sneakier way setting up an L shaped pattern - and booping your piece into the center!
When you have Cats, be mindful of placing them ALL on the bed, especially if you opponent has none. Since Kittens can’t push them, they will be stuck in place.