الابتسامة هي: تعبير وجهي يتشكل من خ

الابتسامة هي: تعبير وجهي يتشكل من خلال ثني العضلات الأكثر وضوحاً التي تكون قريبة من طرفي الفم.[1] بين البشر، تستعمل الابتسامة عادةً للتعبير عن المتعة، أو السعادة، أو التعجب، ولكن يمكن أن تكون تعبير لا إرادي عن القلق وفي هذه الحالة تُسمى تكشيرة. هناك الكثير من الأدلة التي تؤكد أن الابتسام هو ردة فعل طبيعية لمحفز معين الذي ينتج بغض النظر عن الثقافة أو المجتمع. السعادة هي عادة المحفز الذي يُنتج الابتسامة في غالب الأحيان.

النتائج (الإنجليزية) 1:

Smile: facial expression is formed by bending the most obvious muscles that are close to both sides of the mouth. [1] between humans, usually smile to express pleasure, or happiness, or exclamation, but can be involuntary expression of anxiety, in this case called a grimace. There is plenty of evidence that confirms that the smile is a natural response to a given stimulus that produces regardless of culture or society. Happiness is usually the catalyst that produces a smile often.

النتائج (الإنجليزية) 2:

The smile is: facial expression shaped by the most obvious muscles that are close to both sides of the mouth bend. [1] between humans, are used usually smile to express pleasure, or happiness, or exclamation, but it can be an expression involuntary concern in this case called a grimace. There is a lot of evidence that smiling is a natural reaction for a specific catalyst that produces regardless of culture or society. Happiness is usually the catalyst that produces a smile often.

النتائج (الإنجليزية) 3:

Smile is a facial expression formed by flexing the muscle is most apparent near both ends of the mouth. [1] among humans, it is customarily used. The expression of pleasure, or happiness, or amusement, but can be not intentional expression of concern in this case is called grin. There is plenty of evidence that the smile is just a normal reaction to a certain Lmhfz produced regardless of culture or society. Happiness is often the catalyst produced smile most of the time.