click, key in words, wait for 5-20 secs, get satoshi. very simple

1] create account at https://coinad.com/
2] view ads that give at least 100 satoshi. skip those that give 10 or 1 satoshi

Add this to one of your list of free satoshis.
For more free satoshis, check out this link: http://bitbin.it/lkrr0c1I