side spin is usually a byproduct.
ts fh, very visible left to right curve on high balls because of the cross-the-ball ww motion.
fh dtl passing shot, because of the contact point on the outside part of the ball, there is the right to left curve.
the bh slice side spin is most visible when - high slice, contact on the outside part of the ball, resulting l to r curve... low slice, because of the cross-the-ball cut, resulting in r to l curve.
so for the most part these are produced as byproducts determined by the swing path.
deliberate side spin - backhand drop shot down the line with side spin that makes the ball bounce to the left.