"Ah yes, you don't even need to press a button. Your thoughts are transmitted through the sensors of your helmet into a computer. The rest is automatic. [..] and this is very important Mr. Gant. You must think in Russian, you cannot think in English and transpose, you must think in Russian. Do you think you can do that Mr. Gant?"
( ...Foreign cigarettes in the mouth of the person you are pretending to be will be even more convincing than anything else - even your papers... )