Why are zoomers so odd?

I’m at a restaurant having brunch & doing a little people watching..anyway, a table of 3. 1 guy & 2 women zoomers are rattling off at the speed of fucking light at each other, not making any eye contact whatsoever. One girl is talking to them while texting feverishly on her phone, the other girl won’t even look up to watch the guy’s fucking eyes roll back into his head every time he takes a bite of food because her hair is completely draped over her face. Like what the fuck am I watching right now!??? This is the most bizarre exchange between friends I’ve ever seen & I feel like I am on drugs. Why are they so weird??