At the end of the sequence, I was watching live the night it went down, so I don't know what specific camera/video to look for, but at the end of the sequence of events when he walks toward the police trucks and he is standing in their headlights maybe 150 feet in front of them he put his hand in the air and does some kind of signal where he has two fingers together pointing up and then rotates his wrist/hand facing backwards in a very smooth and intentional manner. The way he moved his hand and wrist was definitely not some form of hands up for the police compliance or pointing at something or anything else, it was definitely some kind of signal.

There is a still shot of this hand signal sequence that is commonly used as one of the meme/hero/supportive photos of Kyle. That photo is from the opposite side as the video that I watched. In the video Kyle is facing toward the left/into the camera slightly, the police trucks are behind and to the left of the camera.