Here's a picture of one of me blowing fire outside a friends house (click it to see a larger image).
Blowing fire is relatively easy but incredibly dangerous.
I myself have caught my face on fire TWICE while doing this (however I did not injur myself due to proper safety measures).
Because fireblowing can be so dangerous I highly recommend that no one even attempt it without proper supervision by a professional fireblower (no, your friend Joe who has blown fire a couple of times does not count). For this reason I have decided to not post directions on how to do it with the following caveats: