https://techcrunch.com/2021/04/12/blue-origin-will-run-an-astronaut-rehearsal-during-a-launch-this-week-to-prep-for-human-spaceflight/

Blue Origin is making progress toward its goal of flying human astronauts aboard its spacecraft, with a plan to run an “astronaut rehearsal” during a launch it has planned for Wednesday, April 14. The launch of Blue Origin’s New Shepard suborbital, reusable rocket will be a key step in verifying the vehicle for paying human passengers.

What does the rehearsal entail? Basically everything except for the actual spaceflight, including boarding and going through preflight operations, the returning to the capsule once it has landed and going through a staged version of an actual capsule exit post-mission. It’s what would happen during a Blue Origin launch with private astronauts on board, with the exception that the Blue Origin personnel standing in for those customers will get out of the capsule before actual engine ignition and launch, and then be transported to the capsule landing site where they’ll get back in and behave as though they’ve been there all along.