Hi Gerrycnx, I've helped lead 2 school mission trips to Mercy Christian school in Ubon Ratchathani south of you- they have connections in Chang Mai- so I realize the public sites and furniture/electric are very different than some other countries. I would agree your first meeting would be best at a local restaurant that would be agreeable to you being there for a few hours without cost. If not could you start at a restaurant then go to a local park or other public space? A local school may also allow you to use a classroom? Do you have any connections with locals that may have some ideas for a first meeting? Then you can brainstorm with whomever shows up on how you proceed-whether there is interest in and the ability to sew together- or if there are other ideas to exchange information and help each other. You are really putting yourself out there to connect with others, and that will be so appreciated by those you connect with- good luck!