Using this article as a guide, consider the following questions. Do you identify with any of the people quoted in the article regarding how you use (or don’t use) punctuation in text messages? Do you agree about the “rules” of texting that include writing “k” with no punctuation to convey anger? Do you ever worry about how you will be perceived based on not what you say in a text message but how you use punctuation or acronyms and abbreviations? Can you identify any other texting “rules” or tendencies that were once common but are no longer used by you and your friends or that now mean something different? Do you think you could identify someone’s age just by how he or she uses punctuation or acronyms and abbreviations in text messages? What about gender? Finally, what are your pet peeves when it comes to text messaging?

As this article suggests, there are lots of informal rules that govern the world of texting and that, for the most part, we are all familiar with. The idea that writing a text message completely in capital letters suggests anger, for example, is one we all adhere to. Similarly, adding extra punctuation, like exclamation marks, can indeed emphasize our sense of excitement or happiness and is probably one of the most commonly accepted rules. As for the rule regarding the "k" without punctuation, this is a relatively new one which we are not, perhaps, all familiar with.
As the writer comments, there is a general tendency to worry about how we are understood when we text. Given the brevity of the form, we have to be clear and concise. Moreover, in this short style of written communication, it is almost impossible to convey the tone of our speech. Punctuation and emojis can play a useful role in helping to convey our tone but, as Jessica Bennett states, it can also be misunderstood and misconstrued. It might be, for example, that there is not enough space to add the necessary punctuation—but, for the reader, this can appear cold and unfriendly.
Over the last decade, the rules of texting have undergone significant changes. To shorten words, for example, we used to use the letter 8, as in "gr8" (great). Similarly, when texting first became popular, emojis and other pictorial characters did not exist. Nowadays, emojis are almost expected in a message.
This article suggests that it is possible to estimate a person's age by the way he or she texts. According to Tessa Lyons, for example, her mother uses extra ellipses in a message when she wants to appear "youthful." This implies, then, that younger generations have different texting rules than older generations. Certainly, in my own experience, there is a tendency for older generations to use more formal and correct punctuation than younger people.
In terms of gender, based on my own experiences, female friends use far more emojis and "kisses" than male friends. This, perhaps, reflects and reinforces the stereotype that women are more caring or more emotional than men.
Finally, on the subject of pet peeves, it is an annoyance that people are expected to understand and adhere to the rules of texting when these rules are so fluid and subject to change. As a result, people are often misunderstood and the text message becomes a source of conflict or confusion. Arguably, we should accept texting for what it is: a handy, time-saving tool for communication.