quick question about a image

[Marlboro_]

Hi, how do I highlight or mask a area of a picture so i can remove the background from it

[Jörn Reppenhagen]

See this video by James Ritson:

 

Plus, you may want to check out this YouTuber and enter "masking" into the search box. You'll find countless useful hints about masking and working with masks: https://www.youtube.com/watch?v=j8jszUpmSM0