Bar 4 - Back to teaching

Was working with a new student this morning on Schubert Unfinished.  Same methods; phrase length, harmonic analysis, are the 16ths on or off the string?  If it were an art song, what would the text be for the opening phrase in the vcl/cb?  I got on the subject of YouTube.  Does watching a video of Riccardo Muti conducting ANYTHING really help us on the podium?  I compared it to watching TV in Beijing; I see people acting, I see their mouths moving and hear sounds emerging from them, but I have no idea what they are saying.  Maestro Muti is speaking a language that we don't understand, as much as we might like to and as much as we might believe we do.  Our time is, as always, better spent studying a score ourselves and establishing our own relationship with a composer.  Learning and acquiring some sense of taste and style.  As I suggested to my student today, there is no "right" or 'wrong' way; there is only informed and less-informed taste.  How does one acquire taste?