How do you make a menu?

I wanted to know how to make a menu for my game or do I need unity pro?

You can make a menu with the free version of unity. Check out the GUI script reference section. Or, if you just want code handed to you, check out this guys videos.

http://www.gamertogamedeveloper.com/gtgd-series-1/video-4

He starts working on the first menu window in 00:08:05 in that video.