He'll stand out without a doubt and might draw some curiosity depending on who he runs into. Some locals might come from a place that has very strange-looking species, too, so they'd react less strongly than somebody who might've only ever been on a normal earth. You can decide the variety and types of reactions based on what you'd like to do in the thread!

Overall, the planet has few cohesive sentiments as the majority of the people are bringing their own experiences from vastly different worlds and lives.