When my grandpa used to visit every Tuesday, he would join us for dinner, then some coffee after dinner. We would sit on the couch and chat a bit and at some point grandpa would fall asleep. The rest of us just went about our evening, watching some TV, playing a game, just chatting or whatever. After an hour or so, he would wake up, slap his knee, tell us it was a great evening and head home.
It was actually kind of sweet how that old man would fall asleep. That's why you don't fucking elect grandpa to run the country.