Task: On the Citymapper app, search for the bus from Rotterdam the Hague airport  to Delft University of Technology(TU Delft).
Steps:
Open the Citymapper app.
Click on the Get Me Somewhere tab.
Type in Rotterdam the Hague airport .
Click on the search result.
Type in  Delft University of Technology(TU Delft).
Click on the first search result.
Click on the green arrow icon.
Click on the green arrow icon.
Click on the bus icon at the bottom of the screen.