A real Good English to Urdu :)

Have a nice day! ---- Achcha din lo!
What's up? ----- Uppar kya hai?
You're kidding! ----- Tum bachcha bana rahe ho!
Don't kid me! ----- Mera bachcha mat banaao!
Yo, baby! What's up? ----- Beti Yo, uppar kya hai?
Cool man! ----- Thandaa aadmi!
Check this out, man! ---- Iskee chaanbeen karo, aadmi!
Don't mess with me, dude. ----- Mere saath gandagi mat karo, e vyakti.
She's so fine! ----- Who itnee baareek hai!
Listen buddy, that chick's mine, okay!? ----- Suno dost, who chooza mera hai, theek?
Hey good looking; what's cooking? ---- Arrey sundarta ki devi; kya pakaa rahee ho?
Are you nuts? ----- Kya aap akhrot hain?
Son of a gun. ----- Bachcha bandook ka.
Rock the party. ---- Party mein patthar feko.

And the best ones are.....

How do you do? ----- Kaise karte ho?
Keep in touch! ----- Chhoote Raho.
Lets hang out! ----- Chalo bahar latakte hain