Caroling

In the Philippines, children in small groups go from house to house singing Christmas carols, which they called pangangaroling. Makeshift instruments include tambourines made with tansans (aluminum bottle caps) strung on a piece of wire.

With the traditional chant of "Namamasko po!", these carolers wait expectantly for the homeowners to reward them with coins. Afterward, the carolers thank the generous homeowners by singing "Thank you, thank you, ang babait ninyo (you are so kind), thank you!"
An example of a traditional Filipino carol is a part of series known as "Maligayang Pasko", which was commonly called as "Sa maybahay ang aming bati":

Maligayang Pasko (Tagalog) 
Sa maybahay, ang aming bati:
"Merry Christmas na maluwalhati!"
Ang pag-ibig, 'pag siya'y naghari
Araw-araw ay magiging Pasko lagi!!
Koro:
Ang sanhi po, ng pagparito,
Ay hihingi po ng aguinaldo.
Kung sakaling, kami'y perwisyo;
Pasensya na't kami'y namamasko!!

Merry Christmas (English)

To the householder our greeting is:
"A Glorious Merry Christmas!"
If love should reign,
every day will be Christmas always!
Chorus:
The cause of our coming here
is to ask for gifts.
If it is so that we are a bother,
Do be patient since we're soliciting for Christmas!

More recently, caroling has become a fund-raising activity. Church choirs or youth groups spend weeks rehearsing Christmas carols then draw up a schedule of visits to wealthy patrons in their homes or even corporate offices (often coinciding with the office Christmas party). These are, in effect, mini Christmas concerts, with excellent performances amply rewarded with an envelope of cash or checks. The choirs then use the funds for goodwill projects. Unlike the traditional children's caroling, the singers do not partake of the earnings, but rather donate their share to the group's projects.