A friend shares something online. It's their wedding anniversary, perhaps a birthday, or maybe they've got a new job. Your cursor hovers over the list of emojis....which one to choose, should I pick more than one, shall I write a comment.
Pick up the phone and call them. If they don't answer leave a message, "hey, I just wanted to say congratulations!"
And don't worry if they don't call back or acknowledge you with some form of reply. They got the message and I reckon you probably made their day!