That was nice! I will try to tell my baby to do the same thing.. I am just going through a really tough time right now and I don't want him to be affected. :D
Mine does when I'm mad but I think it's more bc my heart rate goes up which makes his heart rate go up. And he kicks when his daddy is mad too. I don't know how he can tell but he doesn't like his daddy mad.
Aww! I told my baby once that if I ever get mad or sad to kick me and let me know that I should be happy no matter what. Ever since then, I swear, each time I get mad or sad, I feel like he does exactly what I asked and comforts me. It's amazing. I can't help but cheer up when I feel him. (: