Originally Posted by Magnolia
I haven't read the tutorial so I'm not sure exactly what you're doing, but if you're using the "sparkle" shaped brush then I use white for the color. If it doesn't show up enough then just click it more than once in the same spot and it will intensify it.
Also, there are a few other brushes that can be used for the sparkle effect, so maybe try a different one.
I think I just need to do it a few more times in the same place to intesify it! I'll go try it now!