Attention: Dead Centre

After warming the puppy up with at least a couple repetitions of an easier attention game, pinch a treat in each hand for easy visibility, place both hands in front of your eyes, and slowly draw both treats outward horizontally, until you are holding the treats at arm's length away from your face. Your puppy will likely glance between the treats. Wait her out and use a verbal marker the instant she makes eye contact with you by looking dead centre, away from the treats. After marking, feed her one or both of the treats you were holding, then repeat.