Tā shuōhuà zǒng xǐhuān ràowānzi, ràng rén mō bù qīngchǔ tā de yìsi.
He always likes to talk in a roundabout way, making it hard to understand what he means.
Tips
memory
绕 = to wind/circle around, 弯子 = a curve/bend. Imagine taking a winding detour instead of a straight road — that's what someone is doing when they 绕弯子 in conversation.