Copy that code which in fact is your bitcoin address and having given that code (bitcoin address) to the sender ask him / her to send you your bitcoins to that address. Hope you got it now.
Hey there, thanks for the reply. I get that I need to send this code for the person to send bitcoins, but I am worried that blockchain wallet says that it creates a new address for me for every transaction so I don't want the adress to expire by the time he sends the coins which results in my not having them.