When you hold pads (thai pads, focus mitts, etc), it is not just held as a static target. It is best to "pat" into the oncoming blow with little resistance. This will do 2 things for you:
1) You offer live and solid resistance to your training partner hitting the pads. When you are training with the focus mitts at a fast pace, it will look like you and your partners are playing a game of "patty cake." This offers a lot more resistance and feedback for your partner. They will be able to tell if they are hitting correctly.
2) It keeps you from punching yourself in the head with your own hands. We saw this when Rachel Lae held the pads for Frank Mir. I've done it myself when I wasn't paying attention. I've also seen many black eyes caused by someone's legs rocketing a holding arm into someone's head.
So remember to push or pat into the shot as it comes in.
It doesn't matter if you agree or disagree
... As long as I don't bore you and I spark a moment of thought, my goal is achieved
Queng leon queng tigre ecu tacacut, queca pa? - Pampangan Mandarigma Motto