I hope this inspires lively and intelligent discussion…recently I heard a guitar soloist give a concert, the music and playing was pretty good, but the stage deportment something else. Music fell off the stand, guitar was placed onto the artist bench while snatching up something off stage, lots of very unprepared commentary given with no concept of vocal projection or, from what I could tell, anything even remotely worth saying. Far too much talking/mumbling as well. (This has nothing to do with my own hearing issues, fully hearing friends who were there said the same).
A few weeks later I heard a couple of college age string players give recitals (with piano accompaniment). What a contrast! They knew how to bow, walk on and off stage, speak clearly and succinctly and, all in all, perform professionally.
What say you colleagues? I know there are MANY pro players (David R and Jason V. come to mind) who not only perform music in a world class manner, but also behave on stage in a way to make us all proud. But from my own decades of observing, there are a disproportionate number of guitarists who just don’t seem to know the first thing about what to do on stage other than play.