Last HKU German Lesson

It seems the environment of a small class is really good. A few of them even took photos to have "family pictures" together with Herr Wang. Frankly speaking, I don't think Herr Wang is the best German teacher, but I think he's not bad, in a unique Chinese old man way, with other lessons (or occasionally rubbish =p) for life. L: "you are as clear as the depths of the sea" I am sure this is not my first time to hear such a comment, is it my problem?! =p Being able to give this comment on me, does it mean these people know me very well OR not at all? A paradox...