Freelook with the LMB would be awesome. After double tapping "W" to run, LMB to stop would also be great. *EDIT* LMB + RMB to free run would be off the hook.
I'd like to be able to: lay down on the bed sit down on ledges or in the grass lay down in the grass and more
All of these things have been brought up in other threads. Most of these things are still a work in progress and you will see many changes with key binding and such before release. Keep in mind this was Alpha 1. Tons to change in future betas I am sure.