Short paragraphs, like what you’re seeing here, are ideal. Leaving lots of white space on a page makes it easier for customers to read their content. Remember, your customers likely have limited time available to read your content. If they feel like they have to analyze a scholarly essay, they won’t be interested.
A) Nobody really cares. You can stumble over your words, spill your drink or not be up to date with the latest hot news and people won’t actually give a damn. As long as you’re excited to meet them, you show respect and you actively try to engage, they’ll be happy to talk.