**AAC as backup** Use an AAC app to say a word if you feel like you got a block that's too long. Maybe having the app ready as a sort of plan b mouth will make you feel less nervous anyway. **Marker system** You can also have a sort of sentence marks system. For example, in the beginning of your presentation, you could say you will tap your shoulder repeatedly to help you speak and sometimes just to indicate that your sentence isn't finished yet. So tapping becomes a marker of your sentences. Not that you have to tap all the time. You could choose to only tap during long blocks if that's what you prefer. **Disclosure** Do a rehearsal and film it and review it. Discover what your secondary behaviors and nervous behaviors look like. Try to minimize nervous vibe, and as for secondary behaviors, you can disclose them in the beginning of your presentation. I frown a lot as a secondary behavior, so I always disclose that my frowning does not indicate anger or frustration, it's just a meaningless behavior that helps me speak.