4 month old chihuahua mix puppy

4 month old female chihuahua mix puppy.
This little one is a little shy, she takes a little bit of time to warm up, and then she’s playful and very cuddly.
She seems really smart.
She’s still working on potty training.
She does well in a crate and in the car.
Has been around cats, dogs of all sizes, and older children.