How do I put two photos side by side in Google Photos?

You can put two photos side by side in Google Photos using the collage feature.

Creating a Collage in Google Photos

Here's how to create a side-by-side photo arrangement, or collage, in Google Photos:

Open Google Photos: Launch the Google Photos app on your device or go to the Google Photos website.
Select Photos: Choose the two photos you want to place side by side. You'll typically select them by tapping and holding the photos.
Create Collage: Look for the collage option. On mobile this is often in the "add to" menu or a creation option.
Arrange Photos: Google Photos will automatically create a collage with the selected images. You can adjust the arrangement of the photos within the collage. If you want to swap the place of photos, touch, hold, and drag the image to another place in the collage. According to the provided reference, this method allows you to swap image positions, for example, to have faces in the largest spot.
Save the Collage: Once you are satisfied with the arrangement, save the new collage image. The saved collage will appear as a separate photo in your Google Photos library.

If you want specific faces to be in the largest area of the collage, you can touch, hold, and drag the images to swap their positions. This process is explained in the reference video, as you can hold and drag images to swap places in the collage.
This ability to swap ensures you have the arrangement you desire in your final collage.

By following these steps, you can easily place two photos side by side using the collage tool within Google Photos.