graphic design process

I am currently attempting to get small projects to work on for charities for no cost but for good experience before going to university in a year’s time. I have got a few interested charities and have started work but I’m afraid of seeming too unprofessional. How much would you normally interact with a client? Do you just get what you’re told at the start and then produce a few final designs and say there you go? Or do you interact with them more to make sure every stage is done to match what they want. As I haven’t done it before I keep trying to make sure everything is okay with them but don’t know if I should.

Any help on this would be really nice!
Thanks i advance

Dan.