It might sound strange, but when there's a change in your height relative to the people you're surrounded by, you notice. I'm 5'10" (178cm). In Australia and the UK I'm average male height, in Japan and Vietnam I'm a giant, and in the Netherlands, the world's tallest country, I feel small. Here, as in South Korea (Asia's tallest nation), I feel normal height but I keep noticing giant men. It's weird. I'm assuming noticing these things is normal, right?
Also attributed to the region's Nordic ancestry, people in Seattle are also a little harder to befriend. It's called the Seattle Freeze.