* If you don't provide a link to your github profile, I'm not supposed to look at it. This an HR requirement. Other companies may use this same policy.
* I definitely look at github, but it's not always easy to tell if a project is original or not. Quite often I'm presented with either 30 forks, or a few projects that seem like they started as some boilerplate.
* Don't just provide github, also provide a specific project to look at. Even better, point out a particular section that you are proud of.
* Even with a well-stocked github, I will still ask you to code. This likely isn't to tell if you can code, but to figure out what it would be like to work with you.