European cities are designed for pedestrians rather than cars. Hence Europeans walk a lot more and have more incentive not to get fat.
Europeans don't shop at giant superstores like Wally World and don't buy a week's worth of groceries at once. They go smaller stores more frequently and buy lesser amounts.
Europeans live in places with rich histories which are very diverse. The town a few kilometers down the road may speak a different language or dialect, and have different stereotypes and traditions, even though they're in the same country.
Europeans are practical and efficient. If they want to adopt a new system of measurements, a new currency, or a new technology, it catches on very quickly.
Europeans take a year off between "high school" and university studies, usually to travel. They take long vacations and live within their means.
Europeans are very direct. When they smile, it means they are actually happy. When they laugh, they thought your joke was genuinely funny. If they wonder what religion you are, they'll ask. If they say something was "awesome" or "amazing," it actually means it filled them with awe or amazement.
Europeans don't hate Americans, but they also aren't constantly amazed or impressed by them either. In fact, they actually don't think about America that often, just like you probably don't think about Portugal that often. They have their own jobs, families, and hobbies to spend time on - just like you - before thinking about comparing and contrasting themselves with America, or Morocco.