I'm an American who lived in the Philippines for more than 20 years, and there were 7 mistakes we always saw travelers making on vacation

It may come as a surprise to some, but over 90 million Filipinos speak English fluently. In cities like Manila, many foreigners find that nearly everyone they speak to can converse in English.

Over the years I learned to speak Bisaya, a language spoken in central and southern Philippines. But earlier on, I had no problem communicating. So don't hesitate to chat with Filipinos, as many of them are likely try to speak English with you, especially if you need help getting around.

In the Philippines, you can buy many things cheaper than expected. Many currencies — including dollars, pounds, and euros — have a favorable exchange rate, so the value of your money will take you a long way.

Make sure to budget well and compare different tour providers to get the best value for your money. Filipinos are very friendly and will go out of their way to be friends with you and help out, so don't hesitate to ask them for the most affordable ways to travel around the country.

There are so many ways to travel around the Philippines, and it can be pretty easy. For example, I actually rode a jeepney — an open-air minibus popular around the country — from Davao City to Cagayan de Oro. The 162-mile journey was one of my most memorable adventures.

Another good way to travel around is on a tricycle — a motorcycle with an attached passenger cab.

Travelers hopping between islands can take boats and ferries, or fly on one of several Filipino airlines to almost every part of the country.

While most Filipinos can be very friendly and helpful, being cautious is still important. In Manila, the capital city, tourists should be wary of people trying to carry their bags or help out in other ways, especially at the airport. Often, these people don't have good intentions and might take off with your luggage.

Some cities in the Philippines are safer than others — for example, in Davao City, where I lived, the safety index is 72.5. In comparison, Manila's safety index is much lower, at 35.1.

Over the years, I witnessed many foreigners not trying to adapt to local customs. Even as a tourist, it's important to try to adapt to some of the local cultures and even learn a few words in one of the local languages. There are over 100 languages in the Philippines, but the most widely spoken ones include Tagalog, Ilocano, and Bisaya.

When you learn the language, or at least some of the language, Filipinos will practically adopt you as part of the family. Even a simple "salamat" or thank you will go a long way.

Showing respect to others is extremely important in the Philippines. Make sure to speak to others courteously without raising your voice or getting aggressive, especially when it comes to elders.

Those who flout these social norms are considered by Filipinos as "bastos," which means someone who is rude and without manners. While it's important to be friendly and have fun, tourists should be mindful of how they come across to others, especially when speaking with them.

In the US, people are very frank and say what they want to say. But in the Philippines, people are more reserved when it comes to expressing what they really think.

For example, my Bisaya language teacher told me that Filipinos often follow a set of scripts when it comes to accommodating guests in their homes. She told me that when Filipinos offer you food or drinks, there are several rules to follow.

If the host asks you if you want some food, you should decline because they may not have the money to buy the snacks. And if they ask a second time, you should still decline for the same reason. But if they offer a third time, you should accept the offer because they are sincere.

If you decline the third time, your host will consider it an insult. So make sure to read between the lines, and if in doubt, ask a Filipino — they'll gladly tell you the right response to the situation.