Searching for a person using just a picture can be a really useful tool, especially if you're trying to identify someone you don't know the name of. The key is to use Google's reverse image search feature. This lets you upload a photo and then Google will scan the internet to find matching or similar images.
To get started, you can either go to the Google Images website and click on the camera icon in the search bar, or you can right-click on an image and select Search Google for image. From there, you can either paste the image URL or upload the photo directly. Google will then show you any matching or similar images it finds, which may include the person's name or other identifying information. It's a simple process, but can be really helpful if you're trying to track down the identity of someone in a photo.