Try feeding the wire between your ring finger and your middle finger and slowly push with your thumb leave your index finger free. Also you can practice by taking pair of thin cloth gloves (brown jesery gloves you can buy at dollar general or a store) and start with a piece of 1/16 wire a full stick and start buy placing wire in between ring finger and middle finger and slightly make a C shape with your hand and slowly push rod with your thumb. Trust me it takes practice but if you have free time just practice and it time you will get the feel