The Rev. George Reindorp suggests an answer through Welcome, Witness, and Worship.
Welcome:
He invites you to join the congregation of his church, St. Stephen with St. John, Rochester Row, Westminster.
Witness:
He introduces you to his crowded parish and the people who live and work in it.
Worship:
He conducts a short service, which includes the following well-known hymns:
Thou whose almighty word (A. and M. Rev. 266)
Breathe on me (A. and M. Rev. 236)
Fit! thou my life (A. and M. Rev. 373)