To start with you need a string of pearls about 2m long. Make sure they are clean and free of any debris. You must always clean or sterilise your pearls before each use. (Especially new ones!)

Pearls can be inserted and then worn around for some time before taking them out. (Handy for party tricks!)

You may need to moisten your string of pearls or use some lubricant when inserting them for the first time. To start, lay back on the bed and using your finger start feeding the string into your vagina gently pushing them in, leaving only one or two pearls showing.  

Try taking them out very slowly, using short upward jerking movements that cause the pearls to "bounce" or rub on the clitoris.