Question

what is a smile ? Explain​

Answer 1

Answer:

smile is an expression on our face, while smiling, the corners of our mouth turns up to show that we're happy. ☺

have an glorious day ahead !!!!

keep smiling ☺ ☺

Answer 2

Answer:

A smile is a expression that will encourage us .

Explanation:

Smiling during infancy changes its meaning over the first year. The smiles that newborns display during their first weeks constitute what is called reflex smiling and usually occur without reference to any external source or stimulus, including other people.