Pretty much all restaurants and cafes are outdoors in Costa Rica, you're unlikely to find a virtual forum as internet is a bit spotty in many areas of the country but you can try to set something up if you get any interest. Once you get to your destinations talk to shop owners, cafe and restaurant owners as those are most likely expats. Regular sodas ( typical Costa Rican food ) will be owned by Ticos so look for other types of foods Italian, American, Israeli, etc.... people are very open and friendly and happy to share their stories ....good luck.