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Russians always drink tea
It was generally believed that people consume largest amounts of tea in England, but those times have long gone by. Today, tea enjoys great popularity in Russia. In Russia, people drink tea all the time: they drink tea with any dish (and sometimes even pills), a guest would always be offered a cup of tea, they drink tea both on hot summer days and freezing winter days. Tea is a drink that connects people in Russia, and one does not have to be thirsty to have some tea, and if you're offered a cup of tea you simply can't refuse. At the same time, teatime usually implies some sweet snacks on the table: they can be chocolate sweets, some pretzels, waffles, biscuits, jam and anything else sweet.
Russians treat themselves at home, avoid hospitals
Any adult Russian person is an expert in the field of health and medicine, and they do not need a doctor to arrange their own treatment. A sick Russian person knows all about his or her symptoms to diagnose the disease. Afterwards, A Russian "patient" chooses between folk remedies or some pills that they decide to take for themselves. Going to the doctor's on a regular basis is something unreasonably whimsical for an average Russian.
Russians do not shake hands or kiss "over the doorstep"
Both people have to stand on one side of the door to either shake hands or kiss, and they cannot do it otherwise: this is a bad omen.
Comment: On the whole, they don't all seem that strange and perhaps even a bit more pragmatic. See also: Why Russians don't smile?