Tap the Directions icon in the Search box at the top of the screen.
Tap your mode of transportation ( , , , or ) at the top of the screen.
Tap Choose starting point (or My Location), then manually enter a starting point or select from the choices on screen.
Tap Choose destination, then manually enter your destination or select from the choices on screen.
Once starting and destination points are entered, you can tap the reverse icon (on the right side of the screen] to reverse the directions.
A bar with the estimated time will be displayed at the bottom of the screen. You can slide the bar upwards to view a list of the directions or tap to navigate to the location.
You can also view alternate routes by tapping the gray routes on the map.