Generative Fill cannot add a beard to a face

[trwalp]

I opend a close-up photo of a person's face into PS 25.5.1.  I created a duplicate layer, outlined the area in the shape of a beard, and clicked Generative Fill, and entered "beard" for the prompt. The results were changes in the person's mouth expression, but no beard. 

[Kevin Stohlmeyer]

Can you show an example of your image with the selected area?

I also anticipate using the masking tools to remove an unwanted mouth at times when adding facial hair.

This is my process - normally I'm more descriptive than just "beard" but ran with your prompt for this example:

   

[trwalp]

Thank you @Kevin Stohlmeyer !  Attached is the picture.  I tried prompts other than simply "beard" but nothing generated anything close to what I asked for. Besides a mother's comment about the kid not having a beard like I do for hiding food bits, I was motivated to try it because of this short video where the author does exactly what I'm trying to do. (and you so successfully did, too!)

[Kevin Stohlmeyer · Accepted solution]

So subject matter does play into AI results and in this case your young subject definitely works against you. Nothing would generate a beard, facial hair, mustache, etc. with the entire image showing.

What I ended up doing was selecting the lower chin area and duplicating on to its own layer, then hiding the remaining image:

Thereby "tricking" the AI to ignore the age of the subject.

After generating, I simply turned the full image layer back on.

This was the best result out of 6:

 

[trwalp]

Oh man, you nailed it!  I did not know that Adobe's Generative AI takes into consideration the subject matter and not just the selected area, though now that you've pointed that out, it makes sense. Thank you VERY MUCH!