To get nail glue off your skin without the use of nail polish remover try soaking the skin in some warm soapy water for around 5 to 20 minutes.
Then rub some vegetable oil or even petroleum jelly onto the glue using a washcloth until the glue comes off.
If that doesn't get the glue off your skin then you'll need to use nail polish remover because that's the only other way that you can remove nail glue or super glue from your skin.