Who or What Does Taz See?

This was recorded August 24th, and while I can't say 100% the event is paranormal, I believe given all the footage I've collected over the years, its absolutely plausible.
While my dog Taz was laying in her bed next to me, my husband decided to share a funny story about a towns folk luck and my loud outburst of laughter, ended up scaring her. :( She's not a fan of loud noises and since I seldom laugh like that, it obviously bothered her enough, she got up and went and laid on her other bed. While she's laying there, you can tell by her body language, she wasn't happy I was still laughing. Then, she turns towards the couch, yawns, and looks up as if she sees someone she recognizes and responds by wagging her tail.
I'm wondering why she would suddenly and for no reason, go from being irritated by my laughter, to turning towards the couch and briefly wag her tail?
Personally, I'd like to believe its my Neva, Taz's sister that passed almost two years ago. I caught her bark on video several weeks back.
Either way, I find it an interesting reaction.
I muddled the conversation and used the emoji for privacy. There are no other enhancements to this clip.