When a friend invites you to THEIR home for dinner?

Well it all depends on if they said something like I am having a pot luck style dinner on Friday and I would like you to attend so and so and Suzy will be coming will you be there? You say sure and they say OK what will you bring then that is fine because they told it you it is pot luck and that means everyone is bringing something, take something easy like chips and salsa that is easy for guys of er and rolls you can pick those up at the market on the way there unless you like to cook and I have a lot of great potluck recipes that are really easy!