Nudging
The English word nudge means nudge. Nudging uses subtle changes to unwittingly nudge people to modify their unconscious behavior. It is based on positively encouraging desired behavior and takes advantage of the fact that we make many choices without thinking about them.
A nudge can give a better result than imposing rules (which requires enforcement) or giving explicit directions (which can be deliberately ignored).
Nudging can be used as a marketing tool to drive sales. Influencing choices and behavior can also have a more general utility. A well-known example is enticing people to take the stairs instead of an escalator or elevator by painting lines on the floor reminiscent of the lanes of an athletic track. Or the depiction of a fly in a urinal makes men pee less next to the pot.
When designing Web sites, something as simple as the color of a button can already affect the choices visitors make. When presented with a choice of two buttons (such as Yes or No, Agree or Close) executed in different colors, many users will subconsciously gravitate toward the more prominent button.
