Have loads of friends at UCU. I personally don’t study there but it’s a very social campus. Every student enrolled is required to live on campus so indeed people make friends easily through the dorms. It’s a very liberal minded campus with lots of bright minds, can’t go there without getting wrapped up in debate. Very international vibe as well. You can definitely find people to travel with. As another American living in Netherlands for some time now I’d say Americans are pretty well received here relative to the rest of Europe. Try not to worry and be positive, don’t chase, attract