A rule specifying how to relate to strangers. Identify two members of your flock that are near to you and try to stay close to them, but not too close. If local Floys chase you - run away. Rules of Evolution eFloys evolve sexually, where each eFloy is the descendent of two parents. Mother and father are selected according to the mechanism of 'Survival of the Fittest by Unnatural Selection'.
Fitness is defined by two attributes, energy and safety.
If you are an eFloy, you can gain or lose these during your lifetime, and the more you have, the fitter you are. Your best option is to reach the stranger first, and eat him all by yourself. If you are a stranger, each time you are bitten, your energy decreases. When your energy ends, you die. If you move fast, your energy decreases.