When a girl giggles while hugging her?

What does this mean? Does she like me.

While she was hugging me very tightly she rest her head on my shoulder near my neck and started to giggle a lot.

-Also what does it mean when you hug and both of your cheeks brush against each other during the hug and after your about to let go of her? Any meaning.
When a girl giggles while hugging her?
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