[X4StringDrive]

Just my thoughts...With any luck you'll get together for a practice of sorts which should ease the butterflies somewhat. If not, the skills you have will be fine with a smidge of confidence. Surely you know the names of the basic chords and what chords belong to which key, and sounds like rhythm's not a problem if you play and sing for the kid's, if your really unsure or worried about a flub ask if someone could make a 'chord sheet' for you...give it a go, you may regret not doing it, and you might just realize how much more fun it is to play with others{which helps in progressing and the confidence factor}Some of the more experienced here will have more to offer I'm sure......Best of fun to you