Right after walking out, Daneel was subjected to even more glares and people who looked as if they wanted to pounce at him, but couldn't do so until the time was right.
Now that he knew the truth, he wondered how he hadn't seen this before, but he realized that he had gotten a habit of completely ignoring people like these right after he sensed even the tiniest bit of negativity from them.
He had basically typecast them as those who hated him simply because of his background, so he had been unable to identify that something had been wrong.
Of course, this hadn't caused any damage, but it was still pretty infuriating, and Daneel was simply looking for things where he could direct his indignation.
Realizing what he was doing, he stopped right where he was, in the middle of the path, and took a deep breath in order to calm himself down.
