What is a "Wonder Woman" moment? That is entirely up to you and what you feel about Diana. Ultimately, it has to be a moment that you feel defines her random acts of kindness or something which you feel is typical of her behavior.
This thread can help us understand her a little better and ourselves as well!
I think it would be fun if you could cite such moments where you've read her book (or appearance in other book) where you can point at it and say "THAT's Wonder Woman!" I'll start off with two "Wonder Woman" moments! If you don't have screen caps, feel free to cite the situation and book title, or number if you can!
Here, from Wonder Woman #173 in the Jimenez era, we have a classic Wonder Woman moment where she turns the tables on Darkseid... and infects him with 'Love'.
One of my favorite moments from Wonder Woman #15! Wonder Woman has every right to be mean (to say the least) to Hera, whom basically got rid of her entire race, and her mother. Yet, she still treats her with class.
Feel free to post about any of YOUR Wonder Woman moments!