So, I'm getting highlights on my hair today. They're red high lights. Anyways, the problem is my moms doing it for me and she has a shade of red that's a little too dark for my liking. Is there any way to make the red highlights 1-2 shades brighter? I heard that highlights are heat activated from a yahoo answers thread, and blow drying your hair makes your highlights brighter.

Watch this video, see the girls hair on the second picture? I kind of want it to be like that.

EDIT:Oops, sorry for not posting the vid
http://www.youtube.com/watch?v=qqFiNN23xPM