I use to do index fingers out while holding the ball. I did not like the way it looked on video.
I have now switched to bouncing the ball and signaling. I still back out and show 1-1 to the table. I usually say either "bonus 1 and 1" or "1 and 1".
I have found this new method, hard as hell to get use to. Either my cordination I crappy as I get older, or it's always been crappy
I will give it the whole summer to get better at it though, if it's not better by next winter, I will consider switching back.