Polaris in Paris is 49° high in the sky, the Big Dipper is circumpolar (even if in autumn is at the lowest position), if you have no obstruction looking north you will find it.
Another way to get Polaris is to recognize Vega, to NW, and Capella, to NE, then connect them and stop about at the half of the distance, just a bit closer to Capella. Polaris has magnitudo 2.0, it's not Acrux, or Achernar or Canopus...
