Good afternoon Suso,
In the article presented, a small and humble approach has been made to the meaning of one of the very varied types of expressive gaze that human beings manifest. In each of them there are thousands of nuances and peculiarities and of course, as you rightly mention, a fixed look can mean much more than what is explained in this article.
We appreciate, for this reason, your sincere contribution since the truth is found in the sum of all well-intentioned contributions.
Thanks again and a hug,