I would like to know more people who want to improve their oral English, so if you want to know more about me, please check me out, and I'm happy to answer your questions. BTW, keeping this post afloat is one of the purposes to post here. ^_^ so, I don't even mind silly questions.
Lots people claim they have "zero knowledge" in spoken English, to me, that's not true at all. Anyone has been through college must be learning English at school for more than ten years, at least. How could you know nothing to say? The actual problem is that you have zero experience in real conversation. Usually, you simulate conversations in the class, or in many cases, to just read out dialogues in the textbook. That alone wouldn't be enough to let you cope with a real life situation, that's why you stuttered last time facing a foreigner, speaking "Sorry, my English is poor" with a blush on your face. If you can understand what your problem was, you can fix it with a simple solution: start to use your English in real conversation, and to get used to it. I can help you out with that part. Contact me if you want to know more. My Wechat ID: cavemanjoe