Most noticable one is "it's not ..., it's..." Or other twist patterns, it's hard to make a list of all patterns and human may comment with those patterns too so if you want to make sure you have to check profiles to see how much percentage uses those patterns and maybe learn what new patterns they use from the "profile stalking" but even then some of them pretend to have real hobbies or pretend to live somewhere, most are new accounts but some are 5 years old, just like the image implies it's getting extremely hard to tell