>>14141517Or the girls got the cats into position, opened the app, got it in frame, then selected the filter, giving enough time for the cat to recognize their face and the person before it's altered. Or they recognized the clothes. Or the videos were staged for views. Or the cats were reacting to the girls shoving their face up against them, or just looking at them anyway. Or some combination of all of those across different videos.
Do what
>>14141303 suggested and replicate it with cgi in a controlled environment to eliminate these variables