[NFB-InTheKitchen] How to trim meats of fat

[Andrew Harmon]

Hello
I was watching an episode of America's Test Kitchen the other day and
saw a really simple recipe that I waas eager to try until I realized I
would need to trim fat off of boneless skinless chicken thighs. My
problem is I don't know how to tell what's fat and what's meat by a
method other than using one's eyeballs. Can anyone suggest a technique
using either touch or a tool that would help with this?

Thanks in advance

Andrew Harmon