mostly, its because they are intimidated if they are just newly arrived in the country and still adjusting to the people around.
Or they dont smile back as we filipinos looked like: Thai, chinese, madagascar, even brasilian or peruvian or paraguays!
Or they are irregulars, and wanted to be discreet.
Or they dont bother, after all, some filipinos, when get together would say:
do you have a phone card? Or loads in cellphone? Can I borrow ten euros?
Ngek!!
