Here's how to play, bang your head on the keyboard. When you bang your head on the keyboard it should come up with a number of letters or numbers.
Something like this:
bfgki
Now with those jumbled up letters make sentence(or try)
For example, using the letters above.
Big fat grasshoppers kick igloos.
It doesn't have to make sense, it can be totally random like the one i did.
If it has numbers in it you can do something like this:
bvt5nmu <----The jumbled up letters and numbers
The Sentence ---------> Big VosmaerieEclectuses treat 5 numb mongoose uglies.
So make sure the each word of your sentence starts with the letters or number sof your jumbled up letters or numbers. You can switch them around too.

Have fun.
I'm pretty sure i explained this wrong but whatever.