Google makes a Hangouts Mac app you'll want to use
Listen up, OSX users: with the new Hangouts update from Google you might actually want to use the official app rather than Adium. It consolidates your contacts on the left side of one window and puts your chats on the right as you'll see below. It's pretty simple and intuitive and is rocking Mountain View's Material Design style, and frankly the simplification feels a bit overdue. Google's Mayur Kamat writes that you can take advantage of the new features on Chrome OS, Linux and Windows too but you'll have to disable "transparent mode" first.