Lefty?

We've been giving Miriam some of our food at mealtimes lately to play with (because let's be honest, she doesn't eat much of it!) and we've noticed that she's definitely favoring her left hand. 

It's been twice now that we've noticed her using specifically her left hand, but other times during the day she seems to rely on her right.

So do we have a lefty on our hands? I'm interested to see!