It helps bundles to know what the drummer's looking at. When you want to suggest a certain type of sound don't make crash and snare sounds. There's nothing more aggrivating and indescriptive to say "do a pshh, pshh, boom, pshhh, tsss" when every cymbal makes different degrees of the same sound. On the other hand, it is kind of entertaining from a third person view to see this kind of thing happen between an inexperienced guitarist and an inexperienced drummer. But if you want good communication, then learn what they have available so that when you make a reference to a particular drum you can tell him exactly what you mean.