Myraellen both of those new videos confirm to me that Lotta really is what I would call frustrated. You could also call it confused or impatient. She is not too excited to listen if you trained her how I told you. I train with two dogs that do get too excited to listen. I know what that looks like. Lotta is not like that. Lotta does not know how to earn a treat in the first video. Your friend has not helped Lotta understand what to do. Because she does not know what to do she gets frustrated and this makes her "act silly". If your friend had clicked and treated when Lotta stood still Lotta would learn to wait nicely instead of "acting silly". Lotta works well in the second video. This is because she knows what she has to do. She knows what she has to do because she is getting rewarded a lot. Your friend trains Lotta very very well in that video Lotta is not silly. She just needs to understand what she is supposed to do. The dog in that video does not know "Take a bow" nor "Roll over". I train that way because it works. I tried both ways. Using the cues from the beginning works best for me. It works with all the dogs I train with. It works because it helps the dog to understand it has to build on what it got rewarded for last time it heard that cue.