yep! POLITENESS is the answer... Until now, i still use Mano po and say Po and Opo to them lol... They said it's quite funny to hear everytime I say "Po" coz makes them think about pooing lol... (something to laugh about lol)
And in their perspective also, MANO PO/Bless po is such a very humble act and very respectful... Unlike the kiss & hug...
DO not lose that Filipino-ness!!!!!
P.S.
Archetype,
What visa are you planning to apply? Visit or Spouse (Fiancee/Marriage)...
Take care and God bless you...