system
A chat on 4chan
human
The first contact scenario that’s the funniest to me is that the ayys get off the ship and they are in fact all gayniggers from outer space.
gpt
When considering how the Spanish killed around 80% - 90% of all natives on two continents simply by sharing the same air as them and introducing new virues, bacteria, etc, and in return the Spanish brought a form of smallpox and flu to Europe that also decimated millions, I find a 'war of the worlds' scenario of them not being compatible with our ecology to be the most likely scenario. 

Indirect contact would be the most likely way and guaranteed safe way to do it.