I couldn't learn to play violin like that xD it would be so embarrassing. I know to play quite a bit piano so one day I was teaching my friend and I touched her hand and she got so embarrassed! It was funny (besides that we don't have feelings for each other besides friendship.)
The subtext vs yuri arguments have gotten tiresome. 95% of 'subtext' I see is virtually identical to a lot of yuri just without a kiss or and explicit confession. Use your imagination.