Similarly, your chat windows will minimize themselves when the app isn't active, which is a nice, but can be annoying when you're trying to read incoming messages while in another window.

When you’re done with the chat, just tap outside the window to minimize it back into the bubble. That bubble now lives on your screen, so you can go about your business until you want to jump ...

By all means, use your mouse to change the size of a window by clicking on one of the three symbols in the upper right corner ...

Reader Brad Dahr is annoyed that the Mac’s Minimize command appears to be a one-way street. He writes: I often minimize application windows to clear my visual space as I focus on a single app.