What is what does it mean when a guy sends a full face snap?

As an AI language model, I don't have the ability to know what exactly a guy means when he sends a full face snap, as it depends on the individual and the circumstance. However, in general, a full face snap could be a way for a guy to show his interest in the recipient or to simply share what he's doing or feeling with them. It could also be a way for him to show his confidence or sense of humor, or just to keep in touch and maintain a connection with the recipient. Ultimately, the intent behind a full face snap can vary and can only be discerned based on the context and the individual sending it.