Lectures talk at students. Showslide talks with them. We built Showslide after noticing something every lecturer knows but rarely says out loud: students aren't ignoring their phones, they're just waiting for a reason to use them well. So we stopped fighting the screen and made it part of the lecture. One Link or QR code and your lectures are live on every device in the room with reactions flowing in real time. Nothing to install, nothing to configure.