A little more than a week ago, Toronto’s Metro Convention Centre was packed with 5,000 high school students — all gathered for Explore Design, an expo to help young people explore the possibility of a career in the design world.

Digital Design Head of Department Sebastien de Castell and graduate Mark Miller gave the Keynote Address, speaking to a rapt audience of teens.

Mark, on thehappycorp blog, said: “We chose to use our combined experience to give the students five areas of focus, things they could do that day walking out of the presentation, to help them decide if they should continue pursuing design.”

Sebastien shared his thoughts on the approach: “What we wanted to bring to the audience were concepts and stories that could help them bridge the gap between people’s preconceptions of design and the strange and wonderful reality of being a designer.”

For more on what that means, here’s a video of Sebastien at the event, discussing good design.

If you’re wondering where you know Mark from, we wrote about him when he graduated from Digital Design, and when his blog won awards at South by Southwest and Flash in the Can. Yeah, he’s that Mark Miller.