It will branch out on its own if you give it some time. Right now, it's still a baby. You probably won't want it to branch out that close to the ground anyway.

Thanks! How long do you think it will take for it to start branching out on its own?

DON'T prune or tip to encourage branching.

It will branch out during its next growth spurt. But don't be in such a rush, as the other poster said you won't be keeping those mighty low branches any how.