A random Sunday observation:
As part of communion during Mass, we Catholics say the Our Father prayer (aka The Lord's Prayer) followed by the Sign of Peace, where we all shake hands with the people standing around us and say "Peace be with you." Between the two, the Priest rattles off a little introduction to the Sign of Peace that takes about 30 seconds.
It's become customary in many Catholic churches, especially the one I go to at the local college campus, to hold hands during the Our Father. Many people lift their interlocked hands in the air during the end part that goes "For the kingdom, the power and the glory are yours now and forever" before letting go of each other.
It's at this point, as the Priest is rattling off his transition to the Sign of Peace, that I love to look around the pews at the couples that are there. Maybe it's because I'm a sucker for hand holding, but it always makes me smile to see a couple who doesn't let go of one another's hands after the Our Father is over but chooses instead to hang on for that extra 30 seconds.