As the subthread below your comment shows, she certainly shouldn't attempt to express her discomfort to anyone, lest they start babbling incoherently about havi

As the subthread below your comment shows, she certainly shouldn't attempt to express her discomfort to anyone, lest they start babbling incoherently about having to look somewhere in "3D Euclidean space" or asserting that they are as unable to look at boobs as they are unable to breathe (seriously one of the stupidest things I've ever read on HN, which sets a bar). It's amazing how far people will go to excuse poor behavior. The most successful perpetrators of sexual harassment primarily act in ways that are not easily proven or defined. Consciously or unconsciously, they take advantage of natural biases to both prevent their actions from being reported and prevent people from believing reports when they do occur. Here's something you can say: "If someone makes you uncomfortable and you want to tell someone, you can tell me. I won't ask why; I won't argue; I will listen to you, accept what you're saying, and remember it."