A fun Mac thing to do - If you a lucky owner of an Apple Mac computer and want to make it talk then open a terminal and type say follow by anything you want it to say.
For example, if you want it to say Hello Master, then just type:
say hello master
Something cool you can do, this is to clear your dns cache and say:
dscacheutil -flushcache && say -v Your cache on this macbook has been cleared