Not sure if this happens everywhere, but 'round here there has always been a tradition of the guests "asking" the bride & groom to stand up and kiss during dinner. Traditionally guests would tap their forks on their glasses or plates or whatever to make some noise. In recent years most venues have asked people not to do this (because you just know some drunk idiot managed to break a drinking glass with a salad fork) so these days people have new weird, annoying things to get the bride & groom to kiss.
Some suggestions are for a guest (or a whole table) to stand up and sing a love song, or ring bells, or tell a joke, or donate $ to a charity basket.
I hate all of these things and don't want to be annoyed during dinner. Any interesting (or even fun) spins to put on this??