Touch the chin kitten expression pack, also known as "cat blue thin" and "Hal blue thin", is a popular expression pack on the Internet in recent years. Its main body is a lovely kitten, showing a sad or depressed expression, which is used by many netizens to express their emotional or psychological situation.

The original picture of this expression pack comes from a bald cat named TardarSauce. Because of its funny appearance, it is affectionately called "_ _" or "GrumpyCat" by netizens. Its expression is very unique and once became a big star on the internet. Then, its photos are made into GIF animations and various expression packs, including this kitten expression pack that touches the chin.

This emoticon pack is popular and loved because of its cuteness and expressiveness. Used in social media, chat software, forums and other occasions, also known as "sad cat", "cute cat" and "world-weary cat". Whether expressing helplessness, depression, fatigue or anger, silence, surprise and other emotions, emoticons can be easily conveyed and become a part of modern Internet culture.