What is the most common way for human beings to authenticate a person’s ""identity"" in daily human life?

Something a person "is," like the way he/she looks or speaks.

Explanation:

When we see a person for the first time we attribute different traits to them and this determines our behavior towards them. Human physical appearance determines their first impression and social relations. And the next comes how one speaks. These factors formed the basis for the interaction with the person.

answer; the civil right act of 1964;

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.