Dogs are very aware of "spatial pressure,” which refers to using the proximity and movement of our bodies to “push” or guide toward a certain behavior. Your learner might be nervous if you’re leaning over them or the buttons while they explore the soundboard, so try taking a few steps back. Other tips for nervous learners include letting them get used to a blank button or even one that you've taken the batteries out of. Never force your learner to use the buttons. You can always show that they're safe to play with by modeling their use, sitting near them, or even playing with them yourself!