Step 1: You must have a YouTube account or a Google account and you have to sign it with those credidentials. Then go to "Upload Video."
Step 2: Upload video files having one of these file extensions (.avi, .mpg, .mov, .mp4, etc) then write the name, description, and tags on the uploaded video files. Tags are what people will type to search your video, examples of these are (guns, explosions, birds, etc.)
Step 3: Wait for your video to be processed and uploaded. Upload duration would be about 5 to 10 minutes depending on the file size of the video you are uploading.
Additional Information: To view your video, go to your account and click on "My Videos."