how do i carry out the neck snap execution?

PSN Gamertag add me:TheJoker13rekoJ

Okay well im not sure how i purchased it or got it tell me how but take out the garrote (i know it said the neck snap replaced it but it still needs to be out) sneak up behind the enemy you need to take out then choke them with the garrote by pressing L1 and R1 at the top of the screen it'll show you in order to quickly kill the enemy snap there neck pull the controler back on the left handle while keeping the right handle in its normal position i pull it back then bring it back i feel it makes me feel like im in the game and you control whether you to it quickly or slowly Note:I haven't tried doing it slowly im simply suggesting choking them for a short period then snapping their neck. Side Note:The neck snap will work on made men also if you need to take them out with the garrote just make it faster with a neck snap (if it doesnt work on your made men sorry it works on mine). IMPORTANT:Using the garrote nd choking are two different things!!! The game is fun dont make it more frustrating then it should be. Im just 12 so dont say get a life games are my life im going to be a game designer sorry for wasting your time with the lkast part HAPPY NEW YEARS this was my first ever help comment EVER!!!!