Here is a description from an 8kun post:
https://8kun.top/qresearch/res/9904227.html#9904353

~~~~~~~~~~~~~~~
Wow anons, RFKjr doing Periscope on vaccines and a watcher types in “touch your nose if JFKjr is alive”, and clear as day he touches his nose and gives a slight smile.
Someone post the video here, I’ve watched it a number of times, at first he’s sitting back, then he moves closer to the screen to read the comments, when the question comes, very shortly he does it. he’s also listening to a serious matter on vaccines, there doesn’t seem to be a reason for him to smile at that point!
~~~~~~~~~~~~~~~

Click on the Twitter link if you don't see the video here.

https://twitter.com/ClaireCollins86/status/1281064846658686976

So this just happened!! #q #WWG1WGA #RobertKennedyJr #JFKJR #JFKJRRETURN #qanon pic.twitter.com/xDSDQSzoaG

— Truth Seeker 🌞🌙✨ (@ClaireCollins86) July 9, 2020