16 months old words

This month has been super exciting! I can officially now say I TALK! In this month (middle to end) I really started imitating Mommy and now I can imitate lots of words, and will say some of them on my own too!

Here's my list:
Ball (Ba, with a slight ending sound)
Bubbles (Baba) - I will request these
Mama
Dada
Papa
Yaya
Memere
Pepere (Papa)
Bus (Ba)
Blue (Boo - kinda)
Kitty Cat (ge ge ge)
Dog (duh)
Car (dar)
Truck (duh)
Bus (Ba)

I also say Ga (or some kind of sound anyway) when Mommy says "123 ___". I fill in the blank.
I still dont get how to say things like Grandma, Hi, I love you...