Everything in ALLCAPS should be considered something you think about before typing.
Checking out a project
git clone PROJECT_URL git branch -a # Take a look at all the remote branches you can pick from.
Creating a new local branch that tracks a remote branch
git branch --track LOCALFUN remote/REMOTE_BRANCH_NAME git checkout LOCALFUN git pull # You should see, "Already up-to-date."
Switching which branch you are on
git checkout <BRANCH_NAME>
NOTE: Do not use this to create branches!