Proper grammar - if grammar isn't your thing, use Grammarly or a tool that underlines and suggests improvement opportunities. Read your own writing to catch obvious mistakes. I see lots of grammar mistakes but don't care as much as I once did. We're all trying to move quickly and get things done. Don't worry about it, but if you do, just get some assistance.
Persuasion - The bridge between the influence you want to have and the people where they are is opening ideas of possibility for them. Seth Godin writes simply and persuades me because he gives me ammunition to use for myself. That in turn gives him credibility. Consistency, showing up, being authentic, and other positive attributes developed with discipline are persuasive in the long term. If somebody does their homework and discovers you are the kind of person they could be friends with; could trust, and could nod in agreement with, you might be able to persuade them. But first, persuade yourself that what you do meets your own needs.
Collaboration - These items were taken directly from notes @keni and I are sharing about the Scott Adam's book: How to Fail at Everything and Still Win Big. By stealing her bullet points and expanding on them to share with you, she and I are collaborating. You reading this is another kind of collaboration. If you make a comment, and contribute to me and others, you're adding value. This is a tremendous business skill to constantly be honing.