Slip the second fingers through the string on your hands and you have your cat's cradle, as in Fig. 3.
You must now ask a second person to put his thumbs and first fingers through the cradle, as in Fig. 4.
Draw out the string and take it under the cradle, and you will have Fig. 5.
Slip the thumbs and first fingers again into the side pieces of the cradle, draw the string sideways and take it under the cradle, and you will have Fig. 6.
Now curl the little fingers round the string, slipping one under the other as shown, and draw out the side pieces.