An attestation clause, or a clause certifying the proper execution of the will, must usually be added after the testator's signature. The following is a simple form of such a clause:

Signed, sealed, published, and declared by Jane Doe, the testator, as her last will and testament in the presence of us, who at her request and in her presence and in the presence of each other have hereunto subscribed our names as witnesses.

A.B. residing at 1000 X Street, Blank City
C.D. residing at 1100 X Street, Blank City

As a rule, no particular form is prescribed by the various statutes for the preparation of a will so long as the testator's intent is in writing.