OS X Terminal.app: how to start a new tab in the same directory as the current tab?

OS X Terminal.app: how to start a new tab in the same directory as the current tab?

I frequently need to open a new tab in the same directory as my current tab to do something else while my current tab is occupied by a long running process. However, by default when you create a new tab, Terminal.app starts at ~/. Any idea how to make it auto jump?