I love that dd is an old soul in a tiny body. she is 21mo and has such a funny way about her. She will sigh at me if I don't do what she wants me to, wags her little finger at me telling me what to do, says 'oh mummy' and 'oh dear' if I don't do it. She makes me laugh so much and exaggerates these things even more because she knows I find it funny. She often pats me on the head, ever so condescendingly. 
She will randomly shout 'duddle' (cuddle) and fling herself at me for the biggest hugs.
if she accidentally hurts me, she will kiss it better and give me a hug.
She squeals with excitement at the littlest of things, and is sometimes so happy she just has to run round in circles. I don't know how anyone could feel blue with a toddler around to be honest.
When she wakes up in the morning, she will shout out 'mummy! Oh mummy!' And she sounds really posh. I wake up smiling!
Sometimes if she is feeling really lovey dovey she will stroke my face and hair, kiss me and cuddle my head, while murmuring 'ah mummy'. I can't imagine feeling any more loved.
I have found more happiness in the time since she was born than ever before. I'm excited for you op.