You shouldnt even keep friendship with the shia, that should have been your original question 'Can I keep friendship with Shia?' - even keeping friendship is disastrous to your eeman let alone sitting down over dinner with them la hawl, totally out of the question. Do not ruin your eeman stay away from shias and qadianis. You know they follow such a thing as called Taqiyya where they conceal their Shiaism, or you can say lie, and this is actually rewarding for them they say. They say to do this taqiyya is a virtuous act.