If we want that we need to start with the example, showing to the people how to accept bitcoins in their business, asking in any shop if they accept bitcoin as payment and making them feel bad if they don't accept btc.
It's not good to make stores feel bad, because it will work against Bitcoin rather than for Bitcoin. Hyping up Bitcoin too much in an attempt to have them accept it as form of payment isn't good either, because the lack of actual use will make you look bad because the sales in Bitcoin will heavily disappoint, especially during bear markets where most people lick their wounds.
Be realistic, help store owners where they need it, and more importantly, spend Bitcoin yourself over at their store as well. Coingate allows merchants to accept Lightning payments, so definitely a plus there. Everyone likes fast and cheap settling transactions. It might even have geeks visit their stores just for the sake of paying with Lightning.