The plugin provides several shortcodes that you can use to show one or multiple lotteries that your users can play. These shortcodes can be used anywhere on the front end of your website, in a post or a page. I recommend you have a dedicated page where you allow users to play.
In order to play, a user must be: logged in, not set to be excluded and if you set the lottery to cost points to play, have enough points on their balance. If any of these requirements are not met, the user will be shown the appropriate template found in your Base Settings.