How would you know if your puppy's barking and growling at you is friendly or not?

It’s my first dog, so i don’t really know about these things. Sometimes she’d growl and bark at us (almost like a dog would bark at someone passing by the house in the street). Sometimes while barking at us, she’d turn her head sideways and look at me from that angle and then turn back and bark some more.

She’s about 13 weeks old, and a daschund.

So….how does one tell if she’s being friendly or not? I’ve never experienced her biting in a mean manner, just ordinary playful biting i suppose.

I also have a cat, and don’t want her to be aggressive towards my cats in any way, this is priority, and if i can’t ensure this, she’s going to have to find a new home.

I know there is training that needs to be done so that she understands that she’s not the leader around here, and i’m working on that slowly.