Level 2
You gain Culture and Diplomacy as class skills. For each of these skills that is already a class skill for you (or becomes a class skill) from a source other than this archetype, you learn to speak and read a new language. See page 41 of the Starfinder Core Rulebook for a list of languages spoken in the Pact Worlds and beyond.
You can use your Diplomacy skill for Intimidate checks to demoralize a target and your Culture skill for Life Science checks to identify humanoids and monstrous humanoids. When you attempt a Diplomacy check to change a creature’s attitude but you fail the check, the creature’s attitude worsens only if you fail the check by 10 or more.
Source
Pact Worlds pg. 189