One meaning of to incorporate is to make physical, to embody.
When we learn something in our brain, we have to figure out a way to bring it into our understanding, our embodied knowledge.
For example, you can watch YouTube videos for days about the perfect golf swing, but until you start to incorporate the information, you aren’t any closer to playing better golf.
Being a more clear communicator means
1) developing self-awareness of your communication patterns and how they affect your ability to communicate,
2) embodying or incorporating that knowledge in your body and voice, and
3) practicing this awareness and alignment on an ongoing basis.
In other words, it’s one thing to know something in your brain. It’s something else altogether to be able to incorporate it into your body.