Liking, Commenting, and Sharing
You can interact with any pin you find on Pinterest. For example, you can like a pin, leave a comment, or share the pin with others.
To like a pin, hover the mouse over the pin and select the ❤ (heart) icon. Any pins you like will be added to your profile page, which makes them easy to find again later on.
Comments are a great way to let a pinner know how you feel about a pin or just to start a discussion with others. To leave a comment, click the pin, then type your comment in the box below.
Whenever you find a pin from another user that you want to share with all of your followers, you can repin it to one of your boards. To do this, hover the mouse over the pin and select Pin It.
If you just want to share a pin with select Pinterest users, hover the mouse over the pin and select Send.
Whenever someone likes, repins, or comments on one of your pins, you'll receive a notification. To see your recent notifications, as well as your direct messages, click the button to the right of your name at the top of the Pinterest page.