A Doge would trot up to the gate borking about a tasty treat with a letter attached to her brunette fur, "Bork Bork Booork~", with that she would await the responder... and they'd better have had something delicious else she would not be a happy doge!
Letter said:To Tsukasa-senpai,
Oi, It is Suyashi, I have made it to Kumogakure alone and in perfect health an spirits. I have met the Medical Sennin here, he goes by the name Tsuyoshi Junko as well as another Medic by the name of Kiri. I will be sitting down with the Raikage and other various Medical Practitioners fairly soon. I am also doing a fair bit of research to bring back to you in regards to the affects of the smell in emotions. Something I've learned from you is that you can read people pretty well, and I can also do so but in my own way... Training with Jerfu before I left did me well.
Anyways, I am safe. And I will send word of everything that transpires as well as detail it in my full mission report upon my return.
Your Student,
Minamoto Suyashi