I sent a text message to my sister early yesterday morning so she would call me on her way to work and the following conversation ensued…

Me: [Call me!]

Her: calls me immediately, worried, “What’s wrong!”

Me: “Nothing, I meant [Call me!] as a casual request. Just call when you get a chance.”

Her: “Oh, because the exclamation point worried me.”

Me: “If it was really serious I would have texted [Call me.] with a period, I meant the exclamation point to be light and causal.”

Her: “Well, next time consider [Call me :)] with a smiley face.”

Me: “Of course.”