wow, look at her! she looks VERY pleased to be holding that duck!
I'd call that "focused" - she knows what the rules are, and is very comfortable operating within those rules, and is therefore able to totally concentrate on what she knows she is expected to do.
Its fun, isnt it, watching them do what they're bred for! Can you try and get out on a more regular (like weekly with the group and trainer you're working with?) basis with her? i bet it helps strengthen your bond with each other, and helps you and her work thru some of the other things together even better.