How do you make waves on the top of a letter on a keyboard?

To create waves on top of a letter using a keyboard, you can use a tilde (~) or a combination of characters. For example, in some Word processors or text editors, you can type a letter followed by the tilde to indicate a wave effect, like "ñ". Alternatively, in certain fonts or styles, you might use text formatting tools to add wave-like effects. If you are referring to a specific type of wave accent, such as in the case of diacritical marks, you may need to use special character input methods specific to the language or style you're working with.