Many thanks to @rhuid for tweeting the link!
The details for Keanu Reeves’ AMA has been posted and the link is here. His session is on Monday, October 13 and starts at 11am EDT.
If you want to post a question, you need to be registered on the reddit site. If you haven’t registered do so now so and spend some time looking around so you are ready to go on Monday morning. If you are registered but haven’t been on the site in a while, go login and make sure you have access before Monday morning so you will be ready to hit the ground running.
For those not in the states, you can use the world clock to find what time 11 am ET is equivalent to in your country.