I can't believe that the food court tray comment made it into two successive chapters...
Cannot really be a coincidence.
Takada on the 9th page of the 11th chapter:
— Well, I mean, some girls can be pretty harsh judges. Just wandering around the food court with a tray and looking lost might be enough to make them think, “Gosh, not this guy.”
Usagihara on the 3rd page of the 12th chapter:
— Exactly the type who would
wander around the food court with a tray and looking lost.
The author even repeats the phrase in bold letters.
Without reading ahead and spoiling anything I can feel that's a big hint that implies at least two things:
① Takada became somehow acquainted with Usagihara (they might be classmates, they might be going to the same school, but at the very least they visit the same food court),
② and then Usagihara either judged him harshly or was heard by Takada when she pronounced the very same harsh judgement upon some other unlucky fellow and was impressive enough for Takada to remember her and even to quote her.