You can start now if you like. I usually start off with human chicken or turkey meat baby food and progress from there. Get a few jars from the grocery store along with some dessert-size paper plates. Warm the entire jar gently in a bowl of hot water until the baby food is warm, not at all hot, to your touch. Pour about a tablespoon of it out onto the paper plate and smear a little onto your fingers. Offer it to Snowball, while trying to get a little of it into the corners of his mouth. Repeat this several times until he begins to lick your finger. Each time he licks your finger, move your hand closer to the plate until he is lapping up the food from the plate and not your finger. It may take several days for him to catch on, but eventually, he will get the hang of it.