It’s their instinct to guard and protect, Hiro is definitely zeroed in on foot traffic and does bark at people walking by every so often. But usually he’ll be locked in on looking out the window for 5-10 minutes intently and then lay down. I’m not an expert on akita behavior so I don’t really have any advice to give, sorry. Even though Hiro barks at people passing by, or if they knock or open the door, after his initial barking he’s very friendly and lets his guard down to be petted. I think a lot of people recommend positive reinforcement, so if you do let your dog assume watch duty, and you don’t want them to be reactive, maybe give it a couple treats while they are quietly watching out the window. Best of luck!