Talk all about love man.....there are other people (ie. the minister, if there is one) to talk about 'under the eyes of god' or 'the resposibility of marriage', so take it upon yourself to talk about how much these two cats love each other. Beatles quotes work, Ben Harper has a few quotable songs, and there's a ton more out there. Or, make something up yourself! shit, now I feel like a sap....