Video views are a reflection on how many times a video has been watched. Views can be an important measure of a video's overall popularity.
YouTube's defines a view as a user initiated intentional play of a video. But what counts as a user initiated intentional play?
Unfortunately, platforms such as YouTube, Vimeo, and Facebook do not disclose their process for counting views, as it isn't uncommon for people to try and artificially increase the view count on their videos.
YouTube states that to verify the legitimacy of video views it will use its algorithm to ensure the views are real and accurate. If YouTube believes views are artificial, they will slow down, freeze, or change the displayed view count as well as discard low-quality playbacks. An example of a low-quality playback would be using multiple devices, or multiple windows, from the same IP to watch the same video.
It can be assumed that the other platforms, such as Facebook and Vimeo, implement similar features to prevent artificially inflating views.
Ultimately, if you want to increase your view count you should ensure that your video is correctly titled, has good description with relevant tags, and an eye catching thumbnail.