If you ever wondered what the faceless extras in the background of Yuri manga think about observing public flirting, there you go. I like the analyst who read way too deply into it, but was proven instantly wrong by glasses girl's assertiveness. At least his gaydar was working halfway, unlike the rest of the peanut gallery.
Also nice to see the couple being aware of being observed and breaking the Subtext tag with sheer queer energy.
Reminds me of the daily life of high school boys episode where the boys do a commentary of some girls from afar then the girls notice them staring and get creeped out and walk away. Except these girls here are more playful.