There are a few different ways to finger a G Major chord, and the fingering presented below is just one of them. I like this particular fingering because if you're feeling adventurous, you can add your 3rd (ring) finger to the 2nd string, 3rd fret (just below the pinky), and give the g major chord a bit more punch. The more traditional way to finger it is to use your 2nd and 3rd fingers in place of your 1st and 2nd fingers in the chart below, leaving your 1st (index) finger free. The reason for this is to allow you to shift more easily to a C or G7 chord:
Thus, the chart for the G chord above tells us the following:
1st String - Put your pinky on the 3rd fret
2nd String - Play it open
3rd String - Play it open
4th String - Play it open
5th String - Put your index finger on the 2nd fret
6th String - Put your middle finger on the 3rd fret
So try it out. Put your fingers in place and strum it. It's OK if some notes don't ring. That's natural. Note that if another fingering feels better, then by all means go with that. This is the first chord in which we get to play all 6 strings, so you don't have to be precise in your strumming.
**** Go BACK to the Beginner Guitar Lesson Page and scroll down to the Chord Finder Link... you will be routed to a new Page "HOTFRETS.COM, check out The Chord Finder Program. In the Chord scroll down lists provided, the user can pick a chord name and the program will show you how the chord fingering will look on the guitar neck in several different positions on the neck.