Sentence examples for lack of smiling from inspiring English sources

On a personal level, I was taken aback by the lack of smiling and public expression of emotion, which I learned is commonplace in Russia.

Early signs of autism can be subtle, but symptoms that could warrant further investigation include a lack of smiling by six months, and the absence of babbling or gestures like pointing and waving by 12 months.

These emotions were also characterised by negative valence (e.g. lack of smiling, trembling voice and not wanting to sing or dance).

The overall pattern shows that fear and strach are characterised by negative valence, as evidenced by a lack of smiling, a trembling voice and not wanting to sing and dance (Tables  1, 2).

All the laser beam sounds made sense, and the general lack of smiles on stage did, too.

Does the lack of smiles and expressions of emotional vulnerability visible in many of these portraits, for example, tell something larger about the mythical idea of the artist?

Having grown up in New York, and having spent plenty of time there in the years since I moved away, I suppose the lack of smiles is nothing new.

Be careful to act quite cheerful for a while afterwards, as your parents will worry about any lack of smiles.

She said that she had had men complain about her lack of a smiling "resting" face since she was a young child, when a male teacher mocked her poker face.

Prevention of smiling for 3 days is more important!

Possibly stop exhibiting behaviours they perceive as high status (posture, lack of silliness, not smiling, etc).