Manila International Airport (MNL) has 3 terminals: Terminal 1 is the old MNL terminal where most airlines dock. A small domestic terminal exists for flights within the Philippines. Terminal 2 is a modern facility strictly for Philippine Airlines international flights. Terminal 3 is supposed to be world class but yet to open due to controversies and structural integrity, according to news reports.
The airport in general is clean with courteous employees who understand and speak English. If a tourist suspects dishonesty or rudeness, proceed and report him/her to airport authorities or supervisors.
Generally, Filipinos are very helpful and hospitable. However, like in any other country, one may encounter unscrupulous personnel so always be attentive and alert. Security is heavy yet expedient. I'd rather be checked a hundred times than be harmed by murderous fanatics...so good job Manila International Airport thus far.
Is this your business?