input symbols

e.g.1

Indicating that you need special characters

"Don't forget to use the 🔣 key when typing passwords."

e.g.2

Mentioning text formatting options

"You can find more options under the 🔣 section in your word processor."

e.g.3

Referring to complex mathematical formulas

"Make sure all the necessary operators are included using the 🔣 button."