The live-action "How to Train Your Dragon" movie has a very brief end credit scene that appears at the very end of the credits. In this scene, Hiccup opens the Book of Dragons to the blank Night Fury page and places his personal notebook with his sketch of Toothless on it. He taps his fingers a couple of times as if contemplating before the scene ends. This moment has been seen earlier in the movie, so it does not show new footage or tease the sequel. It lasts only a couple of seconds and has no dialogue or additional context. The scene effectively shows Hiccup about to add Toothless' image to the Book of Dragons but is quite minimal and subtle.
This scene is not a conventional post-credit teaser and is not considered very significant or exciting by many viewers. There are no mid-credit scenes—only this single brief clip at the very end of the full credits. The rest of the credits feature beautiful landscape shots and dragon artwork, which some viewers find visually rewarding while waiting.
In summary, the live-action "How to Train Your Dragon" movie's end credit scene consists of a very short, largely symbolic moment with Hiccup and his sketch of Toothless in the Book of Dragons, with no additional story or sequel hinting.
