When I was 12 stepped, I was given a briefing on meeting etiquette. So I knew how to behave because someone told me. This is a disadvatage of just telling people to come to meetings rather than 12 stepping them.
As a sponsor, the job is to take a willing newcomer through the steps and show them how to have a spirtual experience. Nothing more, nothing less.
Whether they get sober or not is in God's hands. We can't fix them, they are beyond human aid. we can only show what we did in the context of the Big book.
If the person is not willing, we cannot effectively sponsor them.