Diamond is still new to your new environtment, play with him more he will get use to your house and will become more active..Spend more time with him..play with him, hug him, singging to him, kiss him , play ball chasing with hime..he is going to love it so much..and he will be royal and manja to u..

Hold him tight with ur hand, hugging him, eventually kiss him.. is true..juz follow wut i told u..

My puppy like me and like to lick me, sometime, i make the same reaction to him to tell him i love him too by lick him back..hahaha, u will think that I'm crazy..I treat my puppy as i'm his mom,he like to sleep in my tummy to wait me to hug him and curi curi kiss me..when ever time he did anything wrong i will scold him and he will lick me back to said sorry to me..

hahaha, if u cant exactly follow my way u can follow half like spend time playing ball with him..

Diamond is so awesome, so charming, he look like "Akita"..and from he appearance i can see he is the type of royal to owner dog..

PuppyWanted :

Have you set up a special place for Diamond? Try and set up a crate/cage with soft area to lie down for him. That's his special "room" where he feels the most safe.

Not too much action around him, just give him lots of love and time. He'll turn around and trust you soon enough

Thank you for your comments.. I've at least spent an hour with diamond for the past 1 month and he's geting better..when i call him now.. sometimes, he will come to me but sometimes, he jst look at me but reluctant to come. He will lick me nowadays and i sayang him on the head and neck, then he'll try to try to bite me (i think he's playing, jst wanna confirm is it true).
Diamond has a place by himself and he knows very well that's his place. I think Diamond like his place cos he always go back to his own place.
I would like to train him to be a guard dog now (ambitious hor ? but i think mongrel has the nature to be a guard dog.) Pls let me know the training steps ? Thank you !