What was the word? Anthropocentrism? We cannot sit with them in a room, but we can send them our plague ridden food? Maybe we could irradiate it first to kill any germs, now that would be seen as polite, no? Just because we perceive a flower/puppy as beautiful does not mean they will do so as well. Sending them philosophical texts - starting of first contact with a clash of cultures/world views? Also, as always they would have to understand our language first, but I guess the OP assumes they do - although I do not conform to his view that they are peaceful just because they are willing to communicate. What do we have in abundance ... hopefully their spacedrive uses lots of weaponsgrade plutonium and uranium, were they willing to trade that for their superior knowlegde of genetic medicine, rocket science and/or energy production ... we could a double-win/win situation!