Embody Christ, Don't Merely Teach
There is a great difference between teaching about Christ and embodying Him. This is the difference between Mary and the rest of us. She allowed Christ to grow within her. Now, this doesn't mean that Christ will be physically born from any of the rest of us. But it does mean that if we let go of our persistent sins and reject the corruptions of the world, the Holy Spirit can envelop us. When this happens, our very being and therefore, our countenance, will be suffused with the mystically present Christ.
Ask yourself: do I teach about Christ? Or do I embody Him?
Pray for each other that this can happen in all of us.