If you're new to growing you could use your males to learn more about the plant in general. You could try practising cloning from it so that if you want to do so with any females in future you'd have a better idea of how to do so successfully. If you are going to just throw it away, before you do, you could rinse off its roots and have a good look at them so you understand better how the roots develop and examine the soil around it (if you're growing in soil) to give you a better idea of how fast it's drying out in the centre of the pot. If you are planning on using a microscope later to examine the trichomes of your females, you could get some practise in at using it to look at your males.