Follow GitHub user's starred, watching and following.
This tool used https://github.com/PyGithub/PyGithub library.
So you need install it first by easy_install PyGithub or pip install PyGithub. If you encounter errors, add sudo and retry.
python follow.py <token> <user>
token: Go to https://github.com/settings/tokens and Generate new token with scope public_repo.
user: GitHub user ID you want to follow.
There is also another similar tool to do this. It didn't use a GitHub API wrapper library. It just use normal pycurl to do this manually.