Greetings dear ma'am @goodybest ! Babies do smile during their first few weeks after birth and of course this usually delights proud new parents very well said.
Smiles are free but they are worth a lot.
I really like your blog.
For social perspective , smiling helps us to build good relationships and foster empathy. Smiling is a gratitude and appreciation. I like your smile. You had a smile on your face even when we spoke on video call. Your smiling face is very beautiful. Keep smiling.😊
A big hug💕