Patience and persistence.
You have to correct them every time they screw up in order not to confuse them.
You need to have enough play in the lead to be able to snap pop the leash.
The correcting every time might be problematic as I’m only home on weekends now. The rest of the family will have to tighten up on the discipline when I’m not at home. Snap-pop, huh? Gives them a start I would imagine.