that meme makes is that it’s clear the gal doesn’t want to participate in the conversation due to body language.

Not trying to argue against the meme, how it’s used and understood etc, but: You can’t interpret body language from a still image, you need at least like two or three movements, you need to see how someone reacts to their own movements so to speak. She might just as well be going “woah, cool”, slight backward surprise movement, and the two are the most wholesome couple you’ve ever met. Or she actually really wants to get out of there. That’s the point: The still image itself is too little information to make the distinction.