We might think that waiters who all flirt with a particular customer do so because the customer welcomes the attention if we notice that the waiters do not also flirt with other customers while we eat. This best represents the concept of .

Consensus

Explanation:

The word "Consensus" has so meaning meanings depending on how and where it is used. But, generally, it means the opinion that is generally accepted, the judgement arrived at by most of the people.

This means that, reaching a consensus is based majorly on the preference of the majority.

In this case, the belief that the customer welcomes the flirting of the water is based on the judgement arrived at by the majority, because it was seen that , the customer does not flirt with other waiters. This is why it is regarded as the concept of consensus.

answer; overt behavior;

citizens were able to charge more for their goods and services