See more
Punctuation — I may open on a (…) or use all caps. Sometimes I end messages in a question, or I’ll add an exclamation point (or several); occasionally, I’ll use no punctuation at all.
Emoji usage / placement — yep, emojis! Sometimes the message is mostly emojis, sometimes it has zero. Sometimes the emojis are in the front, other times in the middle, and a lot of times, at the very end of the message.