Do you mean reading serves, or dealing with the ball bouncing sideways on the table due to sidespin? To deal with the former I think you'd have to practice (or play games a lot) with someone who has really good serves, and can serve variations with backspin and topspin that look the same. I don't think there are any shortcuts. Just as I didn't get a single one of Brett's serves back, there are people I play against every weekend that I manage to fool maybe 2-3 times a game - they think I'm serving topspin when it's backspin and vice versa. Not enough to beat them all the time, though (I miss too many attacks and my doubles partner often misses a huge proportion of the easy kills which result in the misreading of my serves.. )

One great learning aid - download Brett's table tennis training app (can't remember what it's called, a search of the forum should find it) from the Android Play Store. The basic app is free, there's a paid upgrade that adds a lot more features. But one part of the app deals with serve recognition - you get to read the serves of several players (mainly Brett and William Henzel). Choose the slowed-down option at the beginning and you get to see how to actually do the serves and to disguise the spin. Brett's pendulum serve is still pretty much unreadable unless you know what to look for - the top and backspin serves look just about identical.

The ball bouncing sideways is also something that you have to practice against. The seamless plastic ball is notorious for this, it took a while to get used to it.

Iskandar

Long balls, I would be looking to attack - what ever spin is on the ball, you can override it's effect by playing heavy topspin i.e. thin / fast brush contact, creating more spin than is on the incoming ball, and therefor your spin is applied to the ball over the opponents. Presenting your bat to play a solid bat wont stop the spin, you may be able to control / use it if you have read it correctly...but again, if it's a long ball try and attack it with spin / counter top spin as described.

Long balls, I would be looking to attack - what ever spin is on the ball, you can override it's effect by playing heavy topspin i.e. thin / fast brush contact, creating more spin than is on the incoming ball, and therefor your spin is applied to the ball over the opponents. Presenting your bat to play a solid bat wont stop the spin, you may be able to control / use it if you have read it correctly...but again, if it's a long ball try and attack it with spin / counter top spin as described.