Cosette's first instinct was to introduce herself right back. But as soon as she opened her mouth, she realized how dumb that would have been. It was her mother, she knew her name already. She'd already addressed her by it. Still, she continued to smile, marveling at how beautiful she was.
I've dreamed of you. That was another thought that came to mind, but was never vocalized. That was also a bit strange to say out loud and she struggled to find the right wording necessary... She took a few steps forward, hesitantly at first before becoming more bold. She needed to know that this was real and not another dream. "I... I'm so glad to finally meet you."