How to Use Professional Speakers or Street Style?

Professional speakers or street style? I would say professional would be the first choice, but it really does depend on how you hope to use english. You can use that with anybody of any age. If you're trying to use skino street style, you know, of ourse, street style alsoi that can mean a lot of different things. So i don't really think you need to focus on street or slang English very much unless you have a very specific reason to do it.