First of all have a small saucepan (or the right sized saucepan depending on how many eggs you need) filled with enough water to cover the eggs by about 1cm. Now switch the timer on and give the eggs exactly 1 minute's simmering time.
Then remove the pan from the heat, put a lid on it and set the timer again, giving the following timings:
6 minutes will produce a soft, fairly liquid yolk and a white that is just set but still quite wobbly.