on my v1 connection to get hanatchi, i let it starve once (let all the hunger hearts drop to 0, then wait until the attention icon is unhighlighted before feeding it), then after that i would always let it beep at me for food (and when it did i would only feed it up to two hearts full). i praised it up to 5 lines (when it asked for a timeout i just ignored it, and everytime it asked for praise after i reached 5 lines i ignored it too).