I think you have to teach him to focus first. Everything is done in steps and for any command the dog should be focused, so start there. We used to do auto check in exercises, follow me exercises, and watch me.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD