Now, here was a person who didn't know how to lie. Between the Game and his own natural talents, Biffy had learned a thing or two about reading people. So he was more than a little aware of the fact that there was no way Prompto could be from a tiny village way up north. First of all, he looked too well kept. Like life had been good to him. Secondly...well it was obvious why no one would believe that lie.

Still, he played along as he sipped at his ale, mischief in his eye blue eyes. "Oh really? What's it like there in your village? What's it called? I've been meaning to make a trip up north and I could stop by there if everyone is as pretty as you are."

Add in a little flirtation to throw him just a little more off balance. Plus Biffy did find him attractive so in the end a little truth mixed in just helped him along.