Chris Hanley is one of Damien Lovegroves training experts and also one of Damien's co tutors. Courses are now available on how to replicate their shooting styles on Damien's website. You can also visit Chris Hanley's blog for more information.
Here's his tip:
"Here's a way to create interesting effects by being creative with your flash.
We gave this image a "caught in car headlights look" by firing an off camera speedlight into a lastolite sunfire reflector."
Taken on a Nikon D200. ISO400, +1stop compensation 40mm.