Our equipment is concert tour quality, not just standard. I want realism in the music and sound. I know exactly where on the floor I should be at a given moment. People love it when a presentation looks like you put a lot into it, not just threw it together. We have a stage where I lead a lot of the crowd interaction numbers.
People really respond to an entertainer that gets out into the thick of things.
At the same time, I take pride in not over-doing it. You can be too much and turn people off also. I also don't dress myself up in costume, I dress up the wedding party and family members. A routine goes so much further with the guests when they see the groom dressed up along with the wedding party. I will often then put some props on to join them, but once again, I let them shine.