Tip for people who are semi-decent at aiming with Widow but want to practice or warm up:
For 5-10 minutes I go into the Training Range and find some of the stationary bots, put my crosshair in random locations and then close my eyes and flick to try and get a headshot.
If it hits the head, 1 point, if it hits body, 0.5, if it misses, 0. If I miss I reopen my eyes for like half a second to reprocess the image. I play this little game for a bit and then step it up a notch and include moving my own character to make it a bit harder. This way I have to visualize my character movements as well as visualize my crosshair movement in my head.
I think I have about 85%~ headshot accuracy with my eyes closed flicking at various distances while stationary and maybe 65%~ while moving around.
Once I open my eyes again I basically feel like an aimbot, it's an incredible feeling. Then go into real games and stomp people lol
Before doing all that I also like to go to this spot in the training range and practice hitting these two bots by flicking, using the orange light as a starting point. Helps train muscle memory and warm up for the eyes closed game.