I picked up on something in this Korean video, more trivial than the languages issue, I'd say closer to his smoking statements. At some point he is asked if he tasted a strong Korean liquor, he says no, that he isn't much of a drinker. It made me wonder if he isn't much of a drinker by British standards, since I would interpret that as drinking rarely and not much. And then I remembered him mentioning how he liked vodka in a 2012 interview http://www.gq-magazine.co.uk/article/tom-hiddleston-interview-style-thor-2

and gulping down 5 shots of whiskey during an ElleUK interview
http://www.elleuk.com/life-and-culture/culture/articles/a30865/tom-hiddleston-interview/