I frequently use the tilde (&#x27;~&#x27;) for this purpose.  Others use &quot;&#x2F;s&quot;.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Irony_punctuation" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Irony_punctuation</a><p>Most of the marks historically used for insincerity or irony would fail today because they cannot be typed on any keyboards.