Here is a quick thought from a picture of two older people, sitting down with plates of food, looking at each other laughing, that was more geared towards the comedic tone:
INT. DINING ROOM – MORNING
An older man, and an older woman sit down for dinner in a neatly furnished dining room.
They both give each other a little chuckle.
Old man scoops up some food, and puts it close to his mouth.
Old woman lets out a couple wet sounding farts; They both look at each other surprised.
They both crack up towards each other.
Though this is written more in a comedic sense, there is meaning that can be found within it; These are two people who are obviously comfortable with one another, and, also, within themselves. I think that is something everyone strives for, individually, and also with someone they share their life with. So, even things that may not seem like they are meaningful, they can very well be underneath.