Okay, bear with me 
You may be shaking your head saying “Crystal, you can’t teach them manners when they are so young”. But I strongly disagree. As I see it manners, like so many other things, are caught more than they are taught.
So at this age when baby is facinated by you and copying your smile and gestures, rest assured she is also copying your behaviour. So when you need to take a toy from her, don’t forget to say please and thank-you.
Let me also add that “ta-ta” is not the same AT ALL as saying “please”. It’s always seemed odd to me that people would be so sure their child could learn to give them something because Mommy or Daddy said ta-ta and extended their hand… and yet wouldn’t think their child could understand the word “please”. Well they can 
Of course they can
Similarly, when you give them something, encourage them to say thank-you. It will take quite some time before they can say it but I’d bet they will surprize you by how early they will try to say it… and it’s just sooo cute to see and hear a little one try to say thank-you
