Q&A for How to Levitate an Object

Start by making eye contact with your audience to establish a connection. Speak clearly and enthusiastically to captivate their attention, and incorporate humor to make the experience more enjoyable. Also, ask questions to encourage participation and invite volunteers to directly involve your audience. Don't forget to use your body language and verbal cues to control their focus and build suspense with well-timed pauses. Lastly, react to your audience's responses to show you're tuned into their experience, maintain a steady pace and avoid dragging or rushing, and then conclude with a strong, memorable climax. 

Some items, such as foam, plastic wrap, disposable straws etc. float with static electricity. Rub them on some felt or paper towels to create static energy, then you will actually levitate an object.

If any of these methods fail to work, then you have probably made a misstep in the preparation. Check that you've correctly followed all the steps during the setup.

Because of the static electricity charge. It pulls the dollar bill in both directions, allowing it to levitate for a short time.

You could try static, but thread is a good idea.