Is blushing and smiling a good sign?

So I started off with some small talk and I happened to catch it was really easy to make her laugh and when she would smile and laugh she would would try and divert her eyes. I’ve also caught her once looking at me but quickly went back to her position when she saw me look at her.
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I feel bad I didn’t properly introduce myself to her I can only imagine how much she’s going to blush.
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Ok well today didn’t work out as planned since we worked in two different areas but when I walked past her I lightly touched her shoulder and said good morning and turned her head slightly and said good morning.

And again I was walking up towards her she took a sip of water I asked her how’s she's doing and she said she was fine. I saw her again when I was leaving in which I didn’t know she was behind me and she turned to me and I waved and she waved back.
Is blushing and smiling a good sign?
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