How do I lock out the front fork on my RST Neon shock?
The RST Neon comes both with a lockout and without a lockout.  If your unit has a lockout, it can be found on the right hand side.  By looking at the image of the top right fork it appears that you do not have the model with the lockout.

You can see an example of what the lockout looks like here: http://rstsuspension.com/en/forks/city-trekking/neon