How to add cool outlines to images/objects

Have you ever noticed an outline on some pictures/images on YouTube thumbnails? They seem to add extra zing to the thumbnail, and before you know it, you have begun watching that video. That is called the 'Sticker Effect,' more simply called 'Outline.' At Picmaker, we call it 'Stickerify.' :) In this tutorial, let us find out how to add the sticker effects to your images in Picmaker.