Drifting away from the "boring" slide in the conference

I am not a fan of heavy/text-infested slides and hope my audience also second my opinion. I did resort to the healthy image-text ratio in most of the slides and am relying on my speaking skills during my first presentation! In this context, how should he/she adapt himself to suit the interest of audience,dynamically? If I realize that a couple of sides have turned out to be cumbersome or "boring", how should I seamlessly switch over to the next section and regain the lost interest.