It is always good to see other toys, but don’t stress over it. We can extrapolate. She is one lucky pup!
Good luck with the Speak/ Quiet command. Make sure to give the “quiet” a hand signal as well as the “speak”. Personally I use a right hand palm down, lateral movement in a parallel plane to my body orientation.
The target/ touch game has hundreds of uses outside of truffle hunting as well. It is a very valuable skill for teaching all kinds of behaviors. You are astute to notice the difference in how your body positioning, and slight change in position can affect a change in behavior. Well done.