Physically you cannot. The word "physical" comes from its basic word "physics". Thus, your physical body (your human form) must follow and keep track of the laws oh physics and be fully under their influence.
One of the laws of physics says that we, human beings, don't have the ability to fly literally . When I say literally I mean to what you call flying like a bird, in a verbatim way of saying, not with an airplane or another mechanic tools for flight which have been developed and engraved by physics and engineers. So unfortunately you cannot break the laws of physics, sorry to dissatisfy you.
However, we have many levels and layers of our body. Spiritually, you can levitate with your astral body while astral projecting or while being in a deep state of a serious meditation. While meditating or astral projecting, we do not use our literal (physical) body. We use our astral/spiritual body in order to get freedom from the laws of physics and levitate spiritually.
If you wish to get further, learn about deep states/forms of meditation and astral projection.