First of all sorry if i make any mistakes with my english (im Greek

)
I use this routine too but i dont finish there. She asks me how i found which hand was and i tell something like i saw your eyes, read your mind, concetrated on the coin(you ll figure something out

),,and then i tell her that if she concetrates or try to read my mind etc she can do it too!
But while i am telling her all these, i put my other hand (my empty hand) in the pocket and take another coin putting it in the palm without letting her know. So now i have one coin in each hand. I put my hands at the back pretending to mix them, tell her to guess and voila! Any hand she chooses theres a coin! double points! I high five her and put the other coin in my pocket (ofcourse smouthly so she doesnt understand anything).
thanks and again sorry for my english
Errikidio