Pretty? Yes.
I only recently began understanding how to judge age, so I can't tell what age you look like.
Smiling can - by feed-back to the brain - increase happiness hormonally, but aside from that practical aspect, I like the facial expression in that picture.
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I can make a statement true by placing it first in this signature.
"Everyone loves the dolphin. A bitter shark - emerging from it's cold depths - doesn't stand a chance." This is hyperbol.
"Run, Jump, Fall, Limp off, Try Harder."