The best serves in table tennis are low with good placement as well as good variation in the type of spin and degree of spin.
So how can your read the spin on a good serve?
 
There are 4 ways:
1. Watch the direction of the racket
2. Watch the bounce of the ball
3. Listen for the sound at contact
4. Look for the logo on the ball
 
In this short video, I give some tips about how to read the racket on a forehand tomahawk serve https://www.youtube.com/watch?v=tqLxc6mxj6I
 
 
 
Thanks for watching!