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The 2016 Olympic Games in Rio de Janeiro open on Friday, and that means it's time to be patriotic. If you're already going to the games, you're good — thanks for supporting your country's aspiring medalists. For everyone else, it's time to find ways to show your colors.

Here's how to pull off the easiest one: updating your Facebook profile picture.

1. Find a website that offers filter overlays on original photos.

We used Rainbow Filter, which allows you to search for your country's flag in its list of filters. It's not necessary to give the site access to your Facebook or Twitter account; just hit "American flag and USA filter!" or, if you aren't from the USA, hit "more profile picture filters!" and search for your country's flag.

Source: Rainbow Filter
Source: Rainbow Filter

2. Take your Facebook profile photo and drag it to your desktop.

Hello, it's me.Source: Facebook
Hello, it's me.  Facebook

3. Click on the filter for whichever flag you chose, and the website will allow to you select your profile photo from your desktop.

The profile photo, with flag overlaidSource: Rainbow Filter
The profile photo, with flag overlaid  Rainbow Filter

4. Hit the "download picture" button, and then upload your new profile photo to Facebook.

The image ready for cropping on FacebookSource: Facebook
The image ready for cropping on Facebook  Facebook

5. That's it! Enjoy the games.

Read more:
• Olympics 2016 Preview: Here's Everything to Know Ahead of the Rio Olympics
• Brazil Couldn't Fix Its Water Pollution Problem in Time for the 2016 Rio Olympics
• Who Are the Rio 2016 Olympics' Mascots? What to Know About Vinicius and Tom