Questions are a great way to learn! Never be afraid to ask questions. If I have a dumb question, I'd ask it sooner than later because the more time goes by the more silly I'll feel. A dumb question to a newbie shows innocence, which is endearing after all.
According to the great little book, The Four Agreements by Miguel Ruiz, "We make also sorts of assumptions because we don't have the courage to ask questions." If you find the courage to ask questions, you'll be able to express what you want and find out where others are at, avoiding making assumptions which impacts our well being and contributes to inner turmoil.
Communicate clearly and ASK QUESTIONS!