There are many ways on how to get involved in the project:
If you stumble upon an issue, it would be time to describe it, how it did actually happen (and describe possible steps to reproduce it) or even your hints on solving it.
If you have something on your mind, that is compatible with project's philosophy, let me know! I always appreciate any suggestions that can improve libraries' quality.
If you feel up for it, feel free to code and pull request any changes you've made, that can be useful for the libraries. This is the best way to help me out and it is highly appreciated!