As others have said, yes she will most likely communicate with you, but if you are both young then she might also not know this yet either so encourage it. Sometimes its not even talking but she will guide you with how her body moves or her hands as well.

Another nice touch that I havent seen mentioned here is dont forget you have hands and using them will only help more. It doesnt have to be right away, but then start with each hand on each side and gently move them up and down the outside of her legs and work your way up to her chest. After that you can sometimes work one hand and finger into the mix while your still down there, but it’s not necessary all the time and sometimes she may not even want that. Its all about listening.