How do you play two player on minecraft Xbox 360?

Answer 1

Do you mean split screen or multiplayer over Xbox Live?

For split screen:

Step 1: You must be using an HD TV, otherwise split screen isn't possible

Step 2: Connect your second controller and sign into a different profile with it

Step 3: Start the game and join with the second controller

For Xbox Live:

Step 1: Make sure you've made your session an online game

Step 2: Bring up your menu by pressing the Xbox button on your controller, navigate to Friends, find and invite your gaming buddy.