He found that those who had been told the ghost story were much quicker to press the space bar than those who had not.
The space bar takes you down a section, and shift-space brings you back up.
Indent runover lines two spaces by hitting the space bar two times.
When your answer is highlighted, press the space bar to put a check mark by the answer.
To blacken a circle, press the space bar or click on the appropriate circle.
space bar in Technology
hardware (Or "space key") The extra-wide key at the near edge of every keyboard that is used to enter a space character. In some Graphical User Interfaces, the space bar can be used to select the current item where the context does not allow text entry, e.g. when the input focus is on a push button or tick box. (2007-01-29)