A tag is a way to identify someone or something in a post or photo. Tags can also be used to identify people or brands in a post. Tagging allows you to mention other users in your posts, which can be a great way to get their attention or to let them know that you’re thinking of them simply. When you tag someone, their username appears in the post, and they receive a notification about the mention. This is a great way to give credit to the people involved in the photo and makes it easier for people to find the picture if they are looking for it. You can also use tags to label products, locations, or ideas.

Example

For example, if you post a photo of your dog on Instagram, you might tag your dog’s name so that anyone who clicks on the image will see your dog’s name.