Right Handed or Left Handed?

Just sitting here watching Beckett eat some toast pieces I broke up for him and he's putting everyone of them into his mouth (and doing a really good job of it I might add) with his left hand. He picks them up with his thumb and finger and pops them right in there. He's also loving his gerber puffs and cheerios at this point (broken up into smaller pieces, of course). I also found out yesterday that he totally naps on his tummy now!! I peeked in after he had been asleep for almost 2 hours!!!! (not the usual) and he was on his belly. When I've been going in to get him after his naps he's been on his belly a lot lately, but I wasn't sure if it was because he was rolling over when he woke up or he was sleeping that way...now I know!.