How can I concentrate and focus better?

Question

when im doing a scene, i find it really difficult to focus on what im trying to do and instead start mirroring what the other actor is doing. its something different than responding to what the other actor is doing, i think there must be a way to keep what your doing and still respond to what happens in the moment. how do i keep that focus and concentration on what i've prepared?

Answer 1

Start by farting. I will really concentrate to get just the right pitch and vibrance. If you can get this down your ready for anything.  

Answer 2

Listen.  Listen to your fellow actor(s).  Much of acting is in how you are re-acting.  I hope it will help you with your focus and concentration.