To love Him. To serve Him with all your being. To keep His commandments. To circumcise your heart and refuse to be a stubborn, rebellious, arrogant people. In specific ways, your baptism was a circumcision.
Baptism is a spiritual, unisex form of circumcision.
In baptism, you accepted relationship to God and you made an agreement with God. Baptism was not just something your body did. It is also something your heart did. We have a serious problem. We are a people who break agreements and throw away commitments.