Hey! :)
love the enthusiasm for your first plant(s) ;)
You can leave it just as it is with no pruning & hopefully it is a female one (as looking the first picture)
You can of course put some compost for feeding (if you have)

On the other hand a really basic "trick" is to just remove the very top of the plant... to make it grow bushier with more tops... this is in case you want to experiment ;)