I know actors use to improve to spark their performance and creativity, what do you guys do when you don't have ideas.

When I'm stumped on something, I go work on another thing. This applies for writing and any other creative art, like designing. Say I'm working on my house in Minecraft. I'm stumped as to where to continue, so I go work on like a chicken farm or something.

It helps because your mind is thinking about different things, giving your thoughts a rest, yet still staying active.

I agree with Cyrus's tactic, but I so like to go away and read something or Google some inspirational images.

Admin wrote:

I agree with Cyrus's tactic, but I so like to go away and read something or Google some inspirational images.

I do something similar to that if I've worked a lot on something and need a break.

I agree with both cyrux and admin

I try to do something completely unrelated. Take a walk, grab a game, etc.
Sometimes I put myself little challenges like trying to find 3 random words and make a story or drawing with it.
Find a image and write a story to explain it.

Sometimes talking about my problems with other people and hearing their reactions and opinions can help me spark new ideas or tackle the problem from another angle I hadn't seen.

Same here...play a game
Go out with my friends