My 12 month old DD has always given lovely big sloppy kisses, which I love. She's recently started adding teeth and biting! I've said no but she doesn't understand that it hurts. She keeps doing it.
Also, as she's getting more independent she is quite a lovely toddler and I'm trying to teach her to be gentle with things like touching mummy's face, giving objects to people. She tore out a few flaps in her book this week which I found sad as I want her to respect books, but I don't know if this is normal 12 month old behaviour? None if it's done in anger by the way, just enthusiasm.