A slightly opened mouth and red, full lips have a strong, attractive signaling effect on both sexes. "I'll send you a kiss" or "Tonight I'm going to sing at a party".
The mouth emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the people and body
category. Because the mouth emoji has been around for quite some time, it should display correctly in the majority of operating systems.