Guide
Live emoji reactions for talks
A quiet room is hard to read from the stage. Emoji reactions let people respond from their phones while you keep the slide on screen.
Last verified: September 2026
This is the reaction path only. Questions are covered in live Q&A for hackathons (the same Ask tab works in any talk), and star ratings after you stop presenting are in how speakers get live audience feedback.
What the audience does
They join with the session QR code or link. No app, no account. On the React tab they pick one emoji: 🔥 🤯 😂 💀 👏 🚀. The name field can stay empty; the wall then shows Anonymous. They can add a note of up to 160 characters, or send the emoji alone.
After they send, the phone confirms that the reaction is appearing on the wall. They can send another. Nothing here is tallied as a multiple-choice result. Each send is a moment from someone in the room.
What you see from the stage
In the present view, emoji float across the slides you are already showing. You do not switch to a separate results slide to notice that a joke landed or that a diagram lost the room. The same reactions show on the live wall if you project it for the audience.
A note, when someone wrote one, is a text card on that wall rather than another floating emoji. The run-a-talk guide has the screenshots for opening Present, the wall, and the attendee React tab.
When the talk ends
Ending the session saves a reaction count on the talk, next to the question count. It does not replay every emoji. People still on the attendee link then get the feedback form, which is a star rating and an optional comment, not another emoji.
Conference organizers running many talks use the same reaction path per session. See live engagement for tech conferences for the multi-track picture, and Slido alternatives for conferences if you are choosing a tool.
Frequently asked questions
Try reactions on your next talk
Speakers get 5 talks free forever. Organizer events are free up to 100 attendees and one admin. No credit card, no app download, and your audience joins in seconds.