I thought it would be instructive to briefly explore these six factors as they relate to the Web. Many webmasters are already using some of these techniques subconsciously on their sites, to boost traffic. At the end, I'll show an example pitch using these techniques. Receiving an unsolicited gift obligates you to give something back in return. Give away free things and information on your Web site.
Reciprocity also applies to concessions that people make to one another.
You may reject a large request, but if I retreat to a smaller one, you are now more likely to reciprocate with a concession of your own. Consistency - personal. The desire to be, and to appear consistent. People are more likely to comply once they've made a public commitment. The researchers found that by first getting residents to sign a petition, contributions nearly doubled for the handicapped.