[pfapfap]

A year is nothing. Don't lie (very bad and will eventually bite you on the ass, if not here then somewhere), but you don't have to say everything. Just say you were young, fresh out of school, and wanted to stretch your legs and do some things on your own before entering the work force in earnest, since you knew you'd have the rest of your life to work, but only one year to be 23. If pressed, talk about some of your leisure activities during this time. This is not only 100% true, but would probably help you look more responsible and self-aware.