I learned to play acoustic guitar by learning songs that i listened to. I would look up the tablature on
www.online-guitar.com and listen while playing along. I can now play guitar, even though i hardly know the names of any of the notes im playing.
Tablature is not confusing to read like piano sheet music, it only uses numbers to denote frets of the guitar.
To start off you might wanna learn all of the Open Major Chords -A,C,D,E,F,G (you will be using alot of these in the songs you'll be looking up)
After you've got the open chords learned well, move onto Barred Chords, There are many different forms try to learn the Major and Minor formations.
The key to getting could is relentless practice. Keep playing that riff over and over even when it sounds like crap. That's how it is perfected.
Good luck.