Before You Play
Holding your guitar properly is essential to learning without impediment.
Indications that your strings need to be changed are if they look or feel rusty or discolored.
You will need a tuner in order to tune your guitar strings to the correct pitches.
Understand what the various parts of your guitar do and how they can help you.
Guitar picks are to guitarists as swords are to knights.
TAB is a great way to begin your quest of learning different music and a new language.