Just going to go straight to the point....

Common Melee champ Runes not too hard to get.

Armor (Yellow Seals), Magic Resist (Blue Glyphs, and Armor pen (Reds) and for 3 Major Quint's Armor pen.

Your squishy. So runes will help with that.

Boots of Speed is great for early game usually oponents would get dorans or something else that doesnt give them the movement speed advantage. Your a melee champ so MS is everything from escaping to chasing. 3 Pots to keep your self in lane to farm those minions not to go in and harass then waste pots cause they hit you constantly.

When you have enough go back to get Wriggles lantern, this item will make you farm like a boss and free ward your river gankers. It's like a ultimate package all in one to keep you in lane until you have the gold to buy what you need. (Life steal, Armor, Dmg, Ward)

Next your boots i usually play against alot of High AP carries or super CC team. Merc threads is a must against them, if not then you can roll a berserker greave to farm faster and proc more hits.

Zeal- Farm better and heal quicker with wriggles.

Hex drinker, I rush this item early not only does it give you damage and magic resist it saves your life. Everytime I play against a brand or ryze they nuke you in 2-3 hits. I picked it up cause of the small shield it activates. I survived countless ganks. It's just useful for a squishy champ. (Hex drinker may give you a counter kill :D)

Phage- Wukong only has 1 CC his ult when thats on CD your pretty much nothing but hit and run. Getting this will apply slow on the target for you to keep up when chasing an opponent.

Next after killing and farming you buyout triforce. You are now going to deal alot of damage until you get to late game which your dmg will increase even more.

Blood thrister- Farm the jungles, minions and stack that item when fully stacked your going to be hitting hard and healing fast. (Chunk of dmg)

Banshee's veil- Health, Mana, MR, Shield. (Tanky and wont die from ez champ nukers)

Lastly late game they would be scared of you and start stacking armor. I always get Last Whisper that 40 arp with wukongs arp and runes works just great to melt tanks.

Note: and when you dont want your wriggles anymore id sell it late game to get a guardian angel. Cause your initiation is just beast.

Flash- To get out of sticky situations or to initiate with ult.

Ignite- How many times have you played wukong and get KSED over and over. ME! I hate it so I pick up ignite another skill to make sure you get your target kill. I played games without ignite and i hate when i get there health low then just about to last hit for the kill they flash away or juke you. None of that anymore when i want a kill.. I GET IT.

Very important farm,farm, farm. Last hit with your Q's and E's. BLue and REd makes wukong happy if no one is getting it always take it.

He's the best with team work. I usually go in first then tank second. Why? Cause of my cool spin 2 win ULT. Ult in hit everyone and decoy when your getting all the hits in, while your team commited to fight after what you did.... THEN you go back into the fight and E-Q-Ignite combo and CLEAN UP!

Note: His ult is fun but becareful..... dont keep pressing R. I did that so many times and cancelled his ult after i just popped it. WASTE...

Basic Harassment if needed to make a opponent to go back and heal is E - Q.

Then when level 6+ = E - Q - R (Ult)- Ignite

W- which is your Decoy, this skill needs to be used wisely. Either you use it to counter a skill or escape. My experience with decoy was against a Ryze where he stuns you and drops his combo to drop you. Well if you have someone you think thats about to stun you walk in... then quickly decoy when they pop their stun and combo to kill quickly E - Q - Ult (if ready)- Ignite.