Before you play a single note, your body needs to be in the right position. Good posture isn’t just about comfort; it prevents strain and gives your hands the freedom to move efficiently across the instrument. Whether you're sitting or standing, the goal is a relaxed, stable foundation.

When sitting, you have two main options. The casual position involves resting the guitar's waist on your dominant leg, the same side as your strumming hand. This is common for many styles of music. The classical position places the guitar on the opposite leg, elevating it with a footstool. This angles the neck upwards, which can make reaching certain frets easier.

If you prefer to stand, a strap is essential. Adjust it so the guitar rests at a similar height to where it would be when you're sitting. Avoid letting it hang too low or sit too high. In all positions, keep your back straight and your shoulders relaxed.

Your fretting hand—the one on the neck—needs a specific posture. Your thumb should rest on the back of the neck, roughly opposite your index or middle finger. This provides leverage without tensing up. Keep your fingers arched, like you're holding a ball. Press the strings with your fingertips, not the flat pads. This ensures each note rings out clearly without accidentally muting adjacent strings.

Your picking hand should be just as relaxed. If you're using a pick, hold it lightly between the side of your index finger and the pad of your thumb. Don't clench it. Your wrist should be loose, allowing for a fluid up-and-down strumming motion that originates from the elbow and wrist, not the whole arm.

An out-of-tune guitar will make even the best playing sound wrong. Tuning is a skill you'll use every time you pick up the instrument. The standard tuning for a six-string guitar, from thickest to thinnest string, is E-A-D-G-B-E. You can remember this with a mnemonic like "Elephants And Donkeys Grow Big Ears".

The machine heads on the guitar's headstock control the tension of each string. Turning a machine head tightens the string, raising its pitch. Loosening it lowers the pitch. Always tune up to the note. If you go sharp (too high), lower the pitch well below the target note and bring it back up to pitch. This helps the string settle and hold its tuning better.

The easiest way to tune is with a digital tuner. It can be a clip-on device, a pedal, or an app on your phone.

1. Pluck the thickest string (the low E).
2. The tuner will show you what note you're playing and whether it's flat (too low) or sharp (too high).
3. Adjust the corresponding machine head until the tuner indicates the note is perfectly in tune.
4. Repeat this process for all six strings: E, A, D, G, B, and the high E.

What if you don't have a tuner? You can tune the guitar to itself using a method called relative tuning. This ensures the strings are in tune with each other, even if the overall pitch isn't perfect concert pitch. All you need is one reference note. You can get this from a piano, another instrument, or a tuning fork. Let's assume your low E string is already in tune.

The principle is simple: the note at the 5th fret of one string is the same as the next open string.

There's one exception to this rule. Here’s the step-by-step process:

1. Play the note at the 5th fret of the low E string and tune the open A string until they sound the same.
2. Play the note at the 5th fret of the A string and tune the open D string to match.
3. Play the note at the 5th fret of the D string and tune the open G string to match.
4. The Exception: Play the note at the 4th fret of the G string and tune the open B string to match.
5. Play the note at the 5th fret of the B string and tune the open high E string to match.

After tuning, play a simple chord like G or E minor. If it sounds harmonious, you're good to go. If something sounds off, double-check each string.