I try to always address you my listeners and think about what it's like for you. Hopefully this keeps you focused which is good for your English ultimately the point is that language should be understandable yet not without challenge but with the understanding that you can't please everyone all the time. Each individual brings their own personal motivation to the listening experience so different parts are valuable to different people each person will focus their attention on slightly different parts based on their feelings and attitudes. I sometimes avoid speaking from a script because reading words that you've written down in advance makes it slightly less natural.