Typically philosophers can talk to each other about their own ideas. In times of question we merely ask for elaboration. I understand Aeternus, Feroluce, and Errantrogue, and (I'd like to believe) they understand me. We usually have different opinions, and sometimes one or more of us hasn't thought about the subject in question at all! However, by writing things in a detailed manner, with abundant anologies, and placing theories and questions within easily readable statements (if universe then god?) we can easily understand where someone is coming from.

Generally a high school essay format will get you by if you're not sure about your abilities to participate in philisophical discussions. Merely start with a simple statement, and elaborate from there, being sure to provide detail, and especially fact, whenever possible.