STAND when you are ready to share on way you can give students individual reaction time.
When all that will stand are standing (and are consequently ready to respond), one person will share her/his response aloud, and then sit.
If that thought is the same one that others were going to share, or very similar, then those students should also sit. All students who sit snap their fingers as they lower themselves into their chairs.
If those remaining standing feel that, despite having a different response in their mind, they’d like to snap their fingers in recognition of the merit of the idea that was just shared, they may do so while remaining standing.
The process repeats until all are sitting.