Adding emoticons in the mobility Screen

Summary

Can we add clickable emoticons on mobility screen

Content

One of our requirement is to add emoticons to take customer feedback. Once the work will be done, the technician will present a form in which all the work items will be mentioned and customer will tap on one of the emoji to give a quick rating about the job and then sign. Is there a way we can do this without going for plugin?

Version

18D