It looks like you are suggesting painting outside or around the image.
Why not first, click on edit mask mode and then, with the pencil tool, paint inside of the the knit hat with the red paint.
Then switch back over to Standard Mode, which will put dotted lines around the image and around the knit hat.
From there, go to the Select menu on the toolbar, click on Inverse, which will isolate only the knit hat with dotted lines.
Change over to the Move tool.
Click and grab the knit hat inside the dotted lines.
Viola! Move the hat to wherever you want-into another image or into a new place in the same image
-This averts the need to "select something with the selection tool," as in picture 1 above.
-And while you have to stay in the tool's 100% opacity when you are painting with the red paint, you can always switch back and forth between Edit and Standard Modes while painting to make sure the dotted lines that show in Standard Mode are fully covering the knit hat.
