I see a lot of people using presentations for lead generation. And I'd say about 70% of them miss a critical component.

And it's something that usually doesn't get taught at presentation skills training courses because most presentations aren't about generating leads.

The missing component is an irresistible call to action.

One that will connect you with your potential clients and set you up for ongoing communication.

You can deliver the most brilliant presentation in the world, but the chances are that most people, perhaps everyone in the room won't need your services right at the moment you deliver the presentation.

So they've got to remember you later and call you if they need help.

Which means they have to remember you perhaps months later, remember that this is the sort of thing you do, and be able to find your contact details. 

Not impossible, but a long shot.

On the other hand if you close with a call to action that connects you with them: something like offering a detailed report on how to implement the ideas you shared in your presentation; then you can follow up yourself to your heart's content.

Send them something useful every week and months later you'll be top of mind even if your presentation wasn't all that great.

Because consistently good follow-up beats one-shot brilliance. Every time.