When in contact with an alien species, it's essential to be prepared. Here are some guidelines to help you navigate the encounter:
Offer a gift, preferably a nice bottle of fine wine or a well-crafted artisanal cheese. This helps break the ice (or the space-time continuum).
Learn more about Intergalactic Bottle Conditioning
Don't touch their ship, their antennae, or their awkwardly-placed third eye. Personal space is sacred, even in space.
Understand the intricacies of Intergalactic Personal Space
Aliens may have unique customs, languages, and culinary practices. Be open-minded and willing to learn. After all, you're on their turf.