At three and a half months old, Toby is already a little bon vivant and loves full-body massages. So we decided to put together a how-to-massage-a-baby post for Highchair Critics. Here's how we do it...Depending on how luxurious we're feeling, we use baby massage oil, pure vegetable oil (which our doctor suggested, funnily enough), or nothing at all. I start by softly rubbing his forehead in