This character is a Otro símbolo and is commonly used, that is, in no specific script. El carácter es también conocido como guest account.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F464 offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “silueta de busto” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: busto, silueta.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 👤︎ See the Emojipedia for more details on this character’s emoji properties.
El Wikipedia tiene la siguiente información acerca de este punto de código:
A bust is a sculpted or cast representation of the upper part of the human body, depicting a person's head and neck, and a variable portion of the chest and shoulders. The piece is normally supported by a plinth. The bust is generally a portrait intended to record the appearance of an individual, but may sometimes represent a type. They may be of any medium used for sculpture, such as marble, bronze, terracotta, plaster, wax or wood.
As a format that allows the most distinctive characteristics of an individual to be depicted with much less work, and therefore expense, and occupying far less space than a full-length statue, the bust has been since ancient times a popular style of life-size portrait sculpture. It can also be executed in weaker materials, such as terracotta.
A sculpture that only includes the head, perhaps with the neck, is more strictly called a "head", but this distinction is not always observed. Display often involves an integral or separate display stand. The Adiyogi Shiva statue located in India representative of Hindu God Shiva is the world's largest bust sculpture and is 112 feet (34 m) tall.