You really gotta take one for the team and start really talking to her. You should even go to her house. We really need the entertainment and its starting to slow up lately. Plus, she probably could use the company. She wouldn't want to look like a crazy person mooing and ssssttt-ing all by herself at home.
I thought of this today MI when I was at the zoo. I went with a few friends and my one friend really wanted to see a panda bear, but didn't believe us when we told her that there are no panda bears there. So we go over to the polar bears and watch them for a while and walk to the very next animal, which is only about 2 feet away, a wall is shared between the 2 animals. There was a volunteer standing there and my friend (the panda bear one) went up to her and asked if there were any polar bears there. The volunteer kinda looked at her and was like "umm, yeah, you just walked past the polar bears." My friend flipped out saying "see, i told you they had them, but we missed them." I had to break the news to her that she asked about the polar bears, not the panda bears. She was heartbroken after that. Then she saw the crocodiles and asked me what crocodile poo looks like. I told her I had no idea, I've never seen any before. Then she asked me "Do crocodiles relieve themselves?" I just had to shake my head and walk away.