You can't make neon out of ordinary paint. The neon comes from special dyes and pigments that have to be processed into the paint during manufacturing. There are a few stir in additives on the market that can enhance the brightness of paint when a black UV light is shined on it, but they are not normally available to the general public.
Actually, you can't make it glow, you can make it brighter. For example, to make it by adding blue with a bright yellow. So you can try going to Ehow.com
You mix white paint with orange paint
I always go and by my paint it is cheaper then making it your self and you can get the right color that you want .