Mars is more laid back. It took her a while to get used to us, because before, she was really only around my uncle. Even when her and Bula were puppies, Bula would play with people and Mars would just kind of sit back in the corner. She is getting better though. She is still kind of scared of my nephew. I think he's a little much for her right now. Harley will play tag and chase with him, but Mars will just watch from around the corner. She doesn't really know what to think about all of that.