maybe its had because of the language barrier that is between the 2 of you. try to target some korean students who study english. the are the most open for a fact that:
1.) they know how to speak english obviously.
2.) you will know if they really just wanna reject you or theyre actually busy.
3.) some will be open in communicating to you because you're like a free english tutor. so its a win-win.
in the philippines, the most easy prey to target are koreans because they study english in here. and the whole group will adore you as if you're a walking dictionary. no need to impress them. just speak and let them guide you to their apartment.
ps:
sometimes they treat you to dinner just to talk to you. and you know what that means.
