delicacy

Now there are several problems that have to be overcome before jetting off to visit another race. The secret is to avoid first contact for as long as possible. the reason for this is complicated.
Depending on the age of a race they will want to do one of two things, welcome you or kill you. The latter is a non starter so it's good to have an idea before you go what to expect.

That's the first step to get past. If they welcome you, brilliant, it may be they are interested in finding out about you. Now if they want to learn about you that's great, but then you have the learn about you in a nice way or gut you like a fish way.

Then even if that turns out to be the nice way, you have to figure out why and what they want to learn about you. If they want to know you're nutritional content, that would revert to bad. If it's so they can find out about your physiology and go back a step and kill your race more efficiently then that goes back to being not good.

If they want to know about your home and the civilisation you come from, that can also mean one of two things. They either want to know in an enquiring way or in a 'we shall find and conquer your race' way.

To boil it all down to it's basics, when an organism meets another organism there is a simple calculation that is made. If the other organism is bigger than you, you will run or fight, if it is smaller than you you may squash or eat it, if it's the same size as you you will probably try to initiate friendship or mating. It is a very fine balance...