Hi Gail! Bucky and Danse will almost definitely get along, if Bucky can forgive his apocalypse-related ignorance of many basic concepts.

The good news is that the Brotherhood really only dislikes corrupted/mutated humans or technology meant to mimic them, so it's unlikely that an alien will set Danse off (apart from his initial freakout that there are aliens.) He could definitely use any chance to be more open-minded.