When it gets 5 or 6 true nodes, top it above the second true node. The first true node branches will be removed later and used for clones.
Transplant to a bigger pot and bind the top two branches apart and let their tips turn up.
Here is where it can get tricky. If you top these tips too soon it can slow down the grow and if you wait too long they get too tough and snap when you try to bend them.
Top 2 to get four - spread - let tips turn up. Now you should have the basic H-shaped manifold that directs all of the plant's root energy evenly to each branch.
At this point you can continue up to 32 tips depending on how much stretch your strain exhibits. Stretchy Sativa=more tips and compact Indica Kush=less tips.
Use a modified tomato cage to train and bind your branches - performing whatever torture you must to keep all of the branches the same height.
If you are growing in Super Soil (highly recommend), just water and watch the magic.
Nothing easier or more fun and interactive with your plants!
Cheers,
Mo