Expand the repertoire of your system by using subtle skills and principles such as:

Heaven & Earth Technique (for In-fighting)
Hook Block Exercise
The Hard Creates the Soft/The Soft Creates the Hard
Hip Use/Hip Wave to Off-balance
Indirect Movement/Indirect Attack
Instant from the Inside
Interceptions
Imitate to Regulate
Imaginary Center of Gravity
Immobilizations when Attacking
Internal Weight Control