Sitting through an entire lecture or even a movie without furtively glancing at a cell phone can be surprisingly difficult for some of us. (scientificamerican.com)
Personally I like to coach lifts using external cues; Nick Winkelman from Athlete's Performance has done an entire lecture on why using metaphor and the external environment as coaching tools are far more quick and effective for learning movements (check it out for $ 5 here:. (rugbystrengthcoach.com)