Not quite as appealing as your outside voice. To wit:
This real-time MRI film shows live the movements in the mouth and pharynx during speech: The spatio-temporal coordination of the lips, tongue, soft palate and larynx becomes visible, which is necessary to form vowels, consonants and coarticulations
Matt Zajechowski writes:
Reaching out to share an interactive graphic/map that I helped develop with Olivet Nazarene University that covers the second most spoken languages around the world. We’ve excluded any official languages from being the second most spoken language and noted them as official languages for each country to avoid any confusion.
Related: The World’s Most Spoken Languages
Mabel the Border Collie can stick her tongue out on command. Probably useful if you need some stamps licked.