The happy smiling face is one of the most common emojis and universally applicable: you just want to say hello, express joy or excitement about something or brighten up a short text.
The grinning face emoji was introduced in 2012 and released as part of the Unicode 11.0 standard. This emoji can be found under the smileys and emotions
category. Because the grinning face emoji has been around for quite some time, it should display correctly in the majority of operating systems.