It's literally this meme.

The Philippines isn't East Asian. It's kind of like a distant cousin of Latin America, so it's closer to them than to most of its neighbors.

They don't bow the way you'd see in other Southeast Asian cultures... it's very slight, closer to a nod.... Or you might see kids take an elder's hand and bow their head to touch it, or people humbly walking past with their heads lower than yours out of respect... but it's not a traditional bow. So no, you don't need to bow.

You're supposed to pat them on the head when they do that.

If you go to church, you should bow slightly when the priest comes in. Same when you see elders in your community. But we don't really expect it from non-Asians or the younger generation.

The H&M staff bowed when I was there...