[header] How to address a postcard [title] Look for signs of where to put an address. [step] The address is normally placed on the right hand side of a postcard and midway down the card. There is usually a printed vertical line denoting the left and the right of the postcard. 
If not, imagine a line in the centre of the postcard, choose the right hand side to insert the address. [substeps] Many postcards include pre-printed horizontal address lines to show you where to add the address.