When you love a member's profile they are added to your loves list and a message is sent to them. Loves are a great way to keep track of members you'd like to connect and collaborate with and a great way to show your admiration for the work of other community members. You can love a member profile from the following places:
On a member's profile page there is a Love button just below the Message button.
Main Members Page
From the main members page, you can click on the Love icon found on member previews.
In the home updates feed, you can love featured member profiles.