Playing cards! I love playing two games which are pretty local to my region. (those from Italy will be more familiar with it) I usually play with my grandfather (and I played with my late great grandfather). Grandpa just takes the card deck and comes to me "Lets play, you shuffle".
Sometimes I'd even play it in school under a break with my classmates (or if the subject was boring, we would even play under the professors nose XD) - but that wasn't so often, just when someone had a deck with himself.
It's a pity that generally these kind of games are becoming less popular. Now when you come into a toy shop, you'll have almost more of those video games then board games on display.
Here is an image of the cards, so you can picture them in your mind:
