An example:
Me: "Henry, Clara and I are going in the other room...I'm going to try to get some work done on the computer."
Henry: "Okay, I'm just going to stay here and put some more attitude on my jet."
I'm pretty sure we can attribute the attitude to Uncle Will as well.
Clara Jean has been displaying quite a bit of attitude of her own. Generally it's a sweet and humorous attitude. Sometimes it becomes a little bit bossy. She is quite determined and independent-minded. And she looks good in jammies.