I'm guessing that in Manila, you are up against a pretty pronounced lack of public awareness of the second hand smoke issue. Or, so I have surmised from my travels. Anyway, I hope you can find your voice in this. As you can see, all of the smokers here, myself included are sensitive to the various tolerances of others. But you're right that there is no point in trying to tell anyone it's a bad habit. We pretty much know that. But we don't know how uncomfortable you may be unless you say so. Most people don't want to make anyone uncomfortable. Just talk to 'em. good luck.