Rosemary cuttings

I took 3 cuttings from my neighbour's plant and have been lucky enough that 2 have rooted.
But currently I have 2 plants, about 10cm tall, but each is just one stem.
What do I need to do to ensure it grows into a nice full bush ?

 

The most common practice is to, pinch out the growing tip. Then given time, if the new growth fails to automatically double itself then pinch out the new growing tips and so on.

 

So I can pinch out at any time??

 

The sooner the better.

 

Thanks