What does it mean to “look” Jewish?

I’m half Ashkenazi through my father and half Latin American through my mother but I look like the spitting image of my father and have always been told by people my whole life that I “look Jewish”. I’ve become more religiously observant and wear a kippah 24/7 aside from sleeping and the shower and I identify as a Jew, so nowadays my facial features are irrelevant, but if I were to not wear a kippah, people would still ID me as Jewish probably 50% of the time or more.

What is this “Jewish look” if there is one, and why is it that people can tell me apart from say an Italian-American or Greek-American? I have in the past lied when asked by random strangers, because I find it inappropriate and none of their business, but most times I can tell they don’t believe me.

I hope this isn’t a weird post, but I’ve always wondered, is this some remnant phenotype from our Israelite ancestors? Is it just a stereotypical Ashkenazi look?