What anda have to do is find a video. When anda find the video that anda want, anda have to copy its link (Look below at image if anda don't know what that is). When that's done, go to the forum anda want. When menulis a new post, three square buttons should appear at the bottom: one is a smile, one is a camera and the other is a video camera. Click the video camera, and this rectangular box should appear. This is where your video link comes in. Paste the link inside the box (It usually doesn't read it if anda just paste it, but hitting luar angkasa afterwards usually does the trick). A picture of the video should appear below. If words can't do the trick, I made a small tutorial to help anda out (Click the picture for a better resolution/to make it bigger).