what exactly do we have to do

U.S. Constitution, Article I, Section 7,
clause 2:

Every Bill which shall have passed the House
of Representatives and the Senate

Evidence of action in the document-

You need to tell what happens to the bill after it's passed by both houses. The first step is to send it to the President. The rest of the clause details what happens after that.

"Presentment Clause
Every Bill which shall have passed the House of Representatives and the Senate, shall, before it become a Law, be presented to the President of the United States: If he approve he shall sign it, but if not he shall return it, with his Objections to that House in which it shall have originated, who shall enter the Objections at large on their Journal, and proceed to reconsider it. If after such Reconsideration two thirds of that House shall agree to pass the Bill, it shall be sent, together with the Objections, to the other House, by which it shall likewise be reconsidered, and if approved by two thirds of that House, it shall become a Law. But in all such Cases the Votes of both Houses shall be determined by yeas and Nays, and the Names of the Persons voting for and against the Bill shall be entered on the Journal of each House respectively. If any Bill shall not be returned by the President within ten Days (Sundays excepted) after it shall have been presented to him, the Same shall be a Law, in like Manner as if he had signed it, unless the Congress by their Adjournment prevent its Return, in which Case it shall not be a Law."

ARTICLE I, SECTION 7, CLAUSE 2

For a discussion of this clause check this out.

http://www.heritage.org/constitution/#!/articles/1/essays/31/presentment-clause

To find evidence of action in the U.S. Constitution, Article I, Section 7, clause 2, you will need to refer to the original text of the Constitution. Here is the specific clause you mentioned:

"Every Bill which shall have passed the House of Representatives and the Senate..."

This clause outlines the process by which a bill becomes a law in the United States. According to this clause, once a bill has been approved by both the House of Representatives and the Senate, it can proceed to the next stage of the legislative process.

To review the full text of the U.S. Constitution, you can access it through various sources, such as the official website of the U.S. Government or legal databases that provide access to constitutional texts. You can also consult printed copies of the Constitution that are available in libraries or bookstores.

When examining the Constitution, it is essential to pay attention to the specific section (in this case, Article I), the relevant clause (Section 7, clause 2), and the immediate context surrounding it. This will allow you to understand the details and implications of the text.