You can buy a French Press in any number of sizes, I have a four cup and a one cup. Let's run with the one cup. The general rule is one spoon of coffee per cup plus one for the pot. Place the coffee in the bottom of the Caffetiere and boil the kettle.
When the water has boiled wait for it to go off boiling. If you pour it in when its too hot it'll burn the coffee which wont taste good.
Then pour in the water, not too fast but not too slow, you'll see it rise and foam a little. The temptation now is to leave it to stew for a while. Instead take the press and insert immediately, pushing down quickly to the top of the coffee, this traps in the steam and gives some pressure. Now leave it for 2-3 minutes before slowly pressing down. An Espresso-style Crema begins to appear and will transfer into the cup, giving a tasty golden layer on top of the coffee..Failing to use enough coffee or catch the pressure results in a watery coffee, and you may as well have instant. Pour into the cup, adding milk and sugar to taste if you must.