Instructions for correctly setting up a virtual environment and getting started with the project are on the wiki.
How to Get Set Up for Linux Users
How to Get Set Up for Mac Users
Navigate to the root directory of the repo you just cloned /advocateonline and run
python manage.py runserver. Now go to localhost:8000 to view the site!
When installing new packages, always make sure to update the requirements file.
pip freeze > requirements.txt
In general, whenever you pull code, you should probably run python manage.py migrate in case someone has committed new database migrations to the repository.
You should also periodically run pip install -r requirements.txt in case someone has installed new packages.