There is a certain… how should I say, ‘attack angle’, where the best spot is. Like, how you push the string against the yoyo.
I know this probably seems like too much detail for something that looks simple, and normally you don’t think about this at all, it just happens. However, I learned this the hard way after looping the wrong way and having to unlearn for years, I personally prefer if someone did tell me this way.
(Normally the yoyo on the right hand is not only tilting to the right but also very slightly turning left, but it’s not important.)
You want to push about under the tilting side of the yoyo depending on which hand, almost like ‘hugging’ the yoyo. For the right hand it works like this (when the yoyo is near your wrist). This is the closest I could explain with a 2d picture.
Red is where you normally push on.
If for some reason the yoyo starts tilting more to the left, you’ll want to straighten it up by pushing like the blue color below slightly downward. Keep in mind that you’re attacking based on the yoyo direction, not the loop direction.
Turning your loop direction to the left suddenly can also cause the yoyo to tilt to the left, and vice versa. In order to turn properly, you need to prepare.
Green is a little bit tricky to explain but actually I feel the easiest. If the yoyo starts tilting to the right, you’ll want to slightly ‘pull’ the loops upwards, as if holding the yoyo from tilting further.
A good way to learn this is to loop in one direction, say facing to the north. From there gradually start turning 180 degrees while still doing loops so you end up facing south. Do this in both directions. For the first time, just focus on getting the tilt right and do very small turns at at time. Once you can do this easily, you have mastered loops.
I hope that helps.