Step 1: Open the IGTV app or tap on IGTV in the top right corner of your feed. Step 2: Select a video by tapping the plus sign, then hit 'Next.' Step 3: To choose a cover picture, tap and scroll the image at the bottom of the screen, or hit Add from Camera Roll (iPhone) or Add from Gallery (Android). Step 4: After that, press the 'Next' button.