Drew Baye. focuson contracting muscle and producingthe desired body movement.

Ken Hutchins "During exercise, focus
on contracting muscle and producing
the desired body movement.
THE WEIGHT OR MACHINE JUST
GOES ALONG FOR THE RIDE"

If someone is pulling...
-don't tell them to pull harder
-say
"Gradually contract harder until you
contract as hard as you can"
-cue them on body movement
-I'll help with one more rep
-apply a little assistance so they are
able to continue the rep
-let them lower the weight