The chord charts, listed with each song, show your finger placement for each chord.
A good place to begin, if you're just interested in strumming, is to learn the G, C and D chords. Just position your fingers according to the chord picture, and strum the chord until there is no buzzing sound, just nice, clean notes. It's gonna hurt like hell for a few days as your fingers learn to be bent into shapes they are unnacustomed to. Your fingertips will get sore, too.
Once you can make these three chords, practice changing from G to D and back, until you can do it without thinking. Then add in the C chord, and do the same. With these three chords, you can play a host of "simple" songs.
This is a good starting point, at least.
Good luck, and don't get discouraged, just keep at it. It will get easier in a few weeks time.
Hank's prosepctive gutiar player said: "Mr Williams, I'm not sure I can play for you, the onliest chords I know are C D & G"
Hank repleis, after a short pause: "Well, what else is there?"