Though the Czech Republic and Slovakia have has been divided since 1993, some people make the mistake of calling the country Czechoslovakia. From almost all Czechs I’ve spoken to, it irritates them. They might not tell you to your face, but they’ll continue to believe us foreigners are an uneducated lot.Even if you’re aware of the separation of the two countries, don’t over-emphasize the linguistic, or for that matter cultural, similarities between the Czech Republic and its neighbors. Most Czechs see themselves as having more in common with the West. Which leads to the final point – don’t refer to the Czech Republic as being in Eastern Europe. Here, the preferred (and geographically accurate) term is Central Europe.