How can I reference your module in mine?

[HanSooloo]

I'd like to use your module in one of mine that I am working on.

I have a typical puppet module directory structure created with puppet create ....
I have updated my metadata.json file and have tried referencing your module, but keep getting errors.

Should I put it in my module's manifests/init.pp, or in an implementation file like manifests/foo.pp?