All perfect praise be to Allah, The Lord of the Worlds, and may His peace and blessings be upon our Prophet Mohammad and upon all his family and companions.
Sleight-of-hand tricks involve the performance of illusions and the occasional deception of the eyes, but they don`t involve prohibited acts of magic.
However, it is better for a Muslim to busy his time with doing what is useful instead of learning and practicing useless tricks. And Allah knows best.