This video demonstrates a proper deadlift technique.
If you're having knee pain when squatting, here are a couple of tips for you to remember:
1. Make sure your knees stay aligned with your toes when bending. Don't
let them move inward towards each other.
2. Your knees should not go over your toes as you start to bend. If they do, that means you're not sitting far enough back when you go into your squat. Knowing the difference between a proper and improper squat technique can save you from potential pain and injury in the future!