Philippe,
To bleed your brakes by hand you'll need a partner:
1. Remove as much of the old fluid as you can first. A turkey baster (like a giant eye dropper) works well for this.
2. Fill reservoir with new fluid. Here in the US, Castrol LMA and Valvoline SynPower are good choices for daily drivers. The SynPower is synthetic but it is not silicone. Silicone=bad.
3. Put a BOX WRENCH on the brake caliper "bleeder" nipple. Place one end of a tube over the nipple and the other end in a bottle to catch the used fluid. Start with caliper furthest from master cylinder.
4. Have the "Driver" press gently on brake pedal and then say "Open".
5. "Bleeder" opens/loosens bleeder nipple and watches fluid come out.
6. Driver presses brake pedal down slowly and when pedal is
near floor, stops moving pedal and says "Close".
(Don't press pedal all the way to floor. Don't press pedal fast or hard.)
7 "Bleeder" closes bleeder and says "OK, pump again"
8 Driver gives pedal a couple of pumps and then repeats steps starting at #4.
Continually check level of brake fluid in master cylinder.
Bleeder nipple do not have to be very tight. Tighten them like you would tighten a faucet.
Why this way?
You don't want to make the master cylinder operate at the end of its travel in the part of the bore that doesn't get used because it may be corroded or pitted and this will tear or scratch the rubber seals. The only way this can be avoided is for the "Driver" to control the process. Only the driver knows the position of the brake pedal. An added benefit of this method it that if you are having the wife press the pedal she can tell you what to do so your aren't going against the normal chain of command.
If you press the brake pedal fast you can cause cavitation in the fluid i.e. make bubbles in the fluid.
-Chris