Play games with others. My cousin plays Contract Bridge with groups on the web without leaving home. You can play Monopoly, Scrabble and others the same way. Learn the rules of games. Rules for every known game are on the web and many you never heard of.
All current computers have CD music players built in.
Just insert a music CD and sit back and listen as you work. Newer computers may have DVD players that play DVD movies in higher quality than the new HDTV being sold for thousands. You can find almost any kind of music for free, download it and play it on your computer. Software is available on many sites on the web for a nominal cost to turn your computer into a composing machine for composing your own songs. Lots of places to get jokes and cartoons.