The Filipino term "po" has no direct meaning, but is used as a sign of respect, mostly for those older than you, and could be a similar word to "please". The term is used in the middle or end of sentences.
Ano po? (What (is it)?)
Pwede po akong gumamit ng cellphone? (May I (please) use the cellphone?)
Sino po kayo? (Who are you?)
Also, the word "oo" which means "yes" can also be used in respect as "opo".