First Yukkuri i see that related "waiting for food or something with Take it Easy." rarely you see yukkuris relating that since they have a hard time taking it easy with waiting for something they want.
I'm guessing the Reimu is a pet. She has a common pet trait of identifying herself as being of the same type as her owner. Also, she's awfully helpful in making Yukkuri Stew.
I had never heard of pets identifying themselves with their owners, usually they adapt relationships applied to their peers on the owners, like parent, alpha leader or stuff like that, never, thinking they are the same kind of beign.