Magnetism is the same as quantum entanglement with the person. Having the person feeling attracted by yourself in ways difficult to explain is very common. Don’t rationalize to much. Just observe you got a result. Focus on the result and not on rationalizing the why, otherwise for some strange reason you will dis-empower yourself and what at the begin is easy will become more and more difficult.
I agree with the magnetizer Donato - “Newcomers tend to draw theories, but in this field, the more you become expert, the more you see facts and you become overcautious on every generalization and theory”
That said, it is in the human nature to search the “why” and can be sometime useful, but put always before the “what I get”. Put energy there and you will have results.