You have signed-up for an affiliate program and received your affiliate links, banners, ads, and promo codes.
Now it is time to promote and earn with many options:
Be a social smoker and talk about e-cigarettes when people ask you. Give them a business card with your email, promo code, website or blog, etc.
Start a blog or use Twitter. Write about your e-cigarette experience. Readers will follow.
Use social networks to tell your smoker friends about the new cool thing.