Look, here’s the deal. Open on a weekday, Mon - Wed. Give yourself some time before your first weekend. There’s a pretty good chance that when you open the doors, nobody will come in. That’s okay. It’s frustrating as he*$, but okay. You’re operation probably isn’t going to be amazing at first anyway, so give yourself some time to get better. Work on training, training, training. Work out kinks in the operation, etc. Then door hang. The worst thing you could do is advertise before you’re ready. All that you’ll do is ruin it for the people you advertised to.
The worst thing I did when we opened our first store, was get ansy and nervous about it being slow, and try to advertise. What I learned is that by doing things correctly, we picked up without advertising. And the people that came in the beginning, didn’t come back much because we didn’t give them a great experience.