Thoughts On Learning A New Programming Language

How should we teach a new language to folks that already know how to program?
How do we use what we already know to leapfrog the learning process?
Based on my personal experience and snippets of natural language theory, we will try to explore the cheats and pitfalls when learning a new programming language, but also dig into how we can make it easier.

Target Audience: Developers, Textbook Authors, Teachers
Prerequisites: Programming experience
Level: Practicing