Things To Say In A Wedding Card How Do You Fill Out A Wedding RSVP Card?

How do you fill out a wedding RSVP card? - things to say in a wedding card

In the RSVP card to the wedding, where M___________ will then fill the empty space, what shall I write? What leter M? How do I fill the man or woman, or what? I filled in this matter, just want to know how it goes well!