You cannot run a local business the way you run an online store. There are different techniques that you have to use.
For example, if you have a local restaurant you will use halal certificates, get halal training, and will try to acquire other types of quality certificates. But in case of an online business, you will use email lists, landing pages, blog, and other techniques to grow a business and to increase sales.
There are, however, times when you have to interchange the techniques. For example, you can build an email list of buyers for your local restaurant. Though this is not easy but you can do it.
Once you have a list of people who are interested in buying from your restaurant, you can pitch them foods, offers, and other promote anything else via emails and newsletters. This means instant customers who are ready to eat from your restaurant and are willing to try new offers.
The issue is building a list. You have to get the email address of the people eating in your restaurant. This is not easy since there is no easy way to do it. You need to make them visit the squeeze page which can only be done if they have access to the internet. Offer them something valuable if they subscribe to your email list.