There are often humorous occasions for learning cultural norms. Take being sick for example. After a day in bed my kind roommate convinced me to take my temp. I'm stubborn when it comes to that kind of thing. I believe my body knows what’s best for it, including a mild temperature, which slowly boils away all the tricky germs inside this wreck of a body. Luka brings me a thermometer, I look at him a bit apprehensively assuming it must of already been washed because he didn't suggest washing it again and began the slow procession of the silver tipped thermometer to its uncomfortable place of work: Under the tongue. Little did I know despite its similar appearance and assumption that these things are done relatively the same across the globe that in Croatia never would anyone ever put a thermometer in their mouth! What are you doing? Luka said, or something to that effect. I blushed with embarrassment, well where else would you put it? Uh, in your armpit. Well. I guess you learn something everyday.
also this is from wikipedia: In Russia and former Soviet countries, the commonly quoted value (normal body temp) is 36.6 °C (97.9 °F), based on an armpit (axillary) reading.