is my first Havanese and my second dog ever, and most likely last (I'm 55).
I predict there is at least one, maybe two more Havanese in your future!
Lola has zero interest in toys.
Ricky has his own toy basket. He chooses whatever toy he is interested at the time. Sometimes he is not interested at all in toys. Sometimes he just wants to engage and play with his Momi and Popi, like tickle me, chase me, "find it" game, or whatever. It all varies from day to day.
She's five months old, and has never played with anything other than a paper bag or hair brush. She also has never messed with anything in the house, so I should count my blessings here.
Ricky has a fetish for women's underwear! He likes to wrap himself in them. I think we need to take him to a psychiatrist! Your Havadoggie sounds completely normal.
Alerting to potty. Any tips?
Ricky just sits facing the door and looks back at us over his shoulder. That is his cue. But most of the time we just take him out to the yard every once in a while - at least every four hours.
Vocalizing. OMG! She's non-stop! It's hilarious, but it sounds like a cross between singing and growling and crazy, not-of-this-world noises.
Ricky has a big vocabulary - from barks, arfs, yowls, howls, yips, yaps, gurgles, chortles, moans, groans, and growls. He doesn't do this all the time, just when he has something to communicate to us. And he has been very successful teaching us
She also tries to sass me when told "no" or physically removed from someplace like the cat litter box when she WANTS it.
Remember the song, "Whatever Lola wants, Lola gets!". Ricky will "sass" whenever his routine is disrupted and he doesn't mind lettings us know how upset this makes him. We avoid telling him "no." Instead we distract him with something positive - game, toy, encouragement, picking him up and cuddling, or just leaving him alone. Your Lola sounds like an "alpha female" and there is nothing wrong with that. Our daughter's Aussie is an alpha female and she is just like her Moma!
Transporting in a car.
PUT HER IN A HARNESS CONNECTED TO A SEATBELT! Sorry for shouting.
She's been a little star in puppy class, picked up on everything super fast and does wait and stay better than my two-year-old dog.
Your Lola sounds like a typical Havanese! Enjoy her and all the love, comfort, and, enjoyment she is going to bring to your life!