Disclaimer: I just realized I'm way, way to drunk to fully flesh out a comment like this about how Czech Republic is with strangers (literally fucking jet lagging hard-core from my trip a couple days ago and drinking a fuck load to compensate lol), but here is my attempt:

I was just in Czech Republic for work. I noticed the people there were way more friendly and forward than many Americans; it was kind of weird.

For reference, I was in Ostrava, where there weren't a lot of other Americans (we were the only two Americans there in three weeks as far I could tell, at least at our hotel). Many Czech people said they didn't speak English well, but many of those who said they didn't speak English really impressed me with how well they did (though they seemed quite shy about it). Their "small" amount of English was vastly superior to my small amount of Czech lol. (The Germans engineers I talked with at the hotel had a similarly difficult time learning the Czech language and we had a lot of fun talking about it lol, but even then with their somewhat limited English, they could communicate extremely well in english. Made me feel quite inadequate)

In many situations (exuding restaurants or out on the town) the Czech people greeted me right off the bat. Like, if you're in the breakfast room in the hotel, the other Czech hotel guests would say good morning to everyone upon walking in the room. Not just to me because I was an american or whatever, they didn't know. (They all assumed I was from Germany anyways lol). They would greet me assuming I spoke Czech. Upon walking in the room, I was greeted with dobry rano, dobry den, or dobry vecer almost no matter what. And they always addressed everyone in the room saying hello. Extremely polite, no matter the circumstance. They always greeted everyone in the room. I guess I keep re-iterating that because of how different it felt for me as an American. I often felt quite awkward not really knowing how to respond. Like, they literally always greeted everyone whenever they walked into a room. Walked into a section of a restaurant: "Dobry den." Walked into a traincar: "Dobry den." They even said goodbye after the train ride was done.

Only time it was different was in certain bars, where Americans could only sit if they had a reservation, when there were clearly 30 tables open. Which was okay really, if you aren't interested in us tourists you can just say so lol I'm not here to cause trouble.

We we're working for a Czech company, every time an employee would come into the area we were in, they would greet us like everybody else. At my company

As an aside, in the many hotels I've been in state-side, we Americans typically ignore each other. Maybe you say hello to the person working at the hotel and develop a report. After a couple days they usually remember you lol. But usually not the other guests (unless your just a particularly social person .)