I think the best way to ads a small local coffee shop is hand out the leaflets by create the attractive leaflets on Photoshop program and use the cheap papers include a creative. And other way is advertise on social media such as Facebook page, Instagram or Pantip website and review my coffee shop from the people that used to come here on internet and social media to another people on internet see the review and feel interested to come my coffee shop. Anyway advertising on the internet and social media is not costs and the people around the world can see the ads.