If you want the red-headed snake-necked turtle to know its owner, then the owner needs to feed for a long time, and each feeding needs to be fed by himself.

Only the owner feeds the food by himself. Over time, the red-headed snake-necked turtle will It will develop a habit. Whenever it sees its owner approaching, the red-headed snake-necked turtle will open its mouth to ask for food, and will naturally know the owner.