Take all the strings off.
Clean as required.
put the pin in with the winding from the little oojama flip the right way round in the pins groove.
make sure the pin pushes against the little oojamaflip as you press it into the hole.
this cuts down on strange buzzings later.
at the peg end put the end of the string throught the peg,pull it around the next peg up and back to the one its going to be fastened on.
that gives you about the right length of string to wind on.
keep some tension with your fingers by pressing the string down or holding it as you wind.
do it every week so that if you meet BWM he dont bend your ear about your guitar strings being over used.