It's funny to see the mannerisms often of the grandmother vs. just the mom and dad when you see dogs.
Raylan acts a lot like Risa in a lot of ways. He also acts a lot like his dad and mom. It's funny how genetics works - pulling from various relatives to arrive at what you have.
You see it in your kids too. But Raylan likes to muck it up like Risa and you can often see him mimicking her. Is it a learned behavior or genes or perhaps both?