How do you feel when someone smiles at you?

How do you feel when someone smiles at you?

It doesn't have to be a full smile, even a small one or a closed mouth smile, as long as it's sincere.

I especially like it when the people smiling at me aren't big smilers and don't smile usually.

For example someone who's always serious and concerned, but I ask her how she's doing and bring her a coffee and some treats my wife made, seeing the corner of her mouth rising up a bit.

How do you feel when someone smiles at you?
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