Step 1: Find yourself a comfortable, well-ventilated space to operate.
Step 2: Don an Alembic mask, preferably with a face full of holes.
Step 3: Inhale deeply, and then... exhale with reckless abandon.
Step 4: Repeat, repeat, repeat. As your face begins to resemble a fine mesh, you'll be ready for Step 5.
Step 5: Breathe fire with abandon, but only after carefully reading etiquette for safe fire breathing!