Sorry if my English is bad. I'm french, but I'll do my best to describe how to use Wukong-top correctly.
First of all, you all must know that Wukong is a very strong mid and late game champ, but it can get quite hard for him to farm at early game. That's why even though this build may seam unusual, try and understand why I’m doing this.
Our goal is to get him some good farm, and to get his exp to rise by helping other lanes.
Once that is done, he will be able to deal real damage and engage good team-fights.

PS: CAREFULLY READ ALL NOTES PLEASE!

Remember this: Wukong can't work without his team.
You can see that in many ways.
For example:
-Ganking: Before gank, place a clone in bush, then run towards enemy (he won't see you coming). You can then use your A/Q and use your E when he starts escaping. If the enemy still has his flash, try your R before he uses it. Of course, all of this works easier if your team-mate cooperates well. Don't forget to place some auto-attacks in between all your spells.
-Saving a friend: Whenever one of your team-mates is purchased, you can always try placing a clone on the way of the enemy chasing your friend. Maybe he will abandon chasing your friend for your clone.
-Classic Teamfights: Of course, using your R right after diving with your E is a very good way to ingage teamfights. Your team better cooperate if you don't wanna die stupidly. Wukong is a champ that has to take risks.

-Use your clone intelligently: some enemies may guess where your are running eventhough you placed a clone. So try to trick them by going on an opposite side, or by flashing over a wall when your clone is active.
-Try placing your A/Q before your E: helps you deal more damage and quicker.
-Someone diving you under turret? Use A/Q on him, then your clone. Then simply run around the turret, dodging his attacks. Make him loose his time and take damage from the turret. ICE, use your ulti or flash, still under the turret.
-Your E is usable over walls. For example, wait for an opponent to be next to a wall, so that you can jump on him from the other side. You can also escape with your E. I onced tald a friend to bring some enemy minions on the other side of the opponent's wall. I then used these minions to jump over their wall and escape.
-Counters: Darius and DPS champs.
-Focus on carries from the beginning. Wukong easily kills them.
- (other tip) go look in "Team Work > Ganking".