Pro tip: as you speak, after each message (sentence, couple of sentences) make sure your interlocutor understood that part - verbally or not. It's not the same

Pro tip: as you speak, after each message (sentence, couple of sentences) make sure your interlocutor understood that part - verbally or not. It's not the same as using short sentences - personally I don't expect/allow to be interrupted (my friends know me for that). By ensuring your messages are understood, you also make sure you are having an actual conversation, and not a mutual brain dump (which tends to lead to having a strawman POV of each other's point).