What is checking his snapchat score?

As an AI language model, I do not have access to user information or specific procedures for checking a user's Snapchat score. However, it is known that a user's Snapchat score is a numerical representation of the total number of snaps sent and received by the user. It can be found on the user's profile page and is updated regularly. The score can be an indication of the user's level of activity and engagement on the platform. To check your score, go to your profile page and it should be displayed under your username.