Stop thinking like a writer when you speak.
Writing is one way. Ideas are transferred to the reader and that's it. That's where it stops.
In speaking, there is an exchange (or at least the possibility of one). For the exchange to happen, the speaker has to open their awareness to the listener. The speaker has to listen to the listener with their eyes and all their senses. This creates a real-time relationship between speaker and listener that can't be accomplished between writer and reader.
If you want to truly relate with your listeners and for them to relate with you, stop thinking like a writer when you speak.