But he shouldn't listen yet... you JUST adopted him.
Do not worry. You need to develope a training *relationship* with him.
This happens over time. After you are using a clicker and treating for the behaviors you want, using a ball, praise, petting... whatever motivates.. the point is that *over time* he learns a pattern of listening to you, focusing on you and doing these behaviors will become a habit (takes time!), and expecting the fun training games that he loves to win at, that he loves so much cos he is sharing time with you. These training rutines become like a muscle-memory for him... soon, treat or no treat, sits and downs etc. will become more automatic for him. Take time.. build that relationship by training and having fun working with him daily, incorperating training games into your daily lives. Have fun!


