Hi,
I have been living here in Dili, Timor-Leste for two years now. I made new friends through my church, my embassy. Some people make friends when they go to sports events (cycling) or places for hang-outs (like bars, etc.)
To meet with locals normally, we just go the the market, shopping places, etc. I cannot really comment on cultural specificity because I don't really have a strong grasp on the subject. Perhaps, others would like to chip in?