Talk to Katrina

 is an unmarked quest in Fallout.

Quick walkthrough

 * Exhaust all dialogue options with Katrina.

Detailed walkthrough
Katrina is the town greeter standing at the front entrance to Shady Sands. The intention of the developers of Fallout was likely to include her as a tutorial character considering her dialogue is focused around explaining a few fundamental game-play systems, including bartering, healing, and the First Aid and Doctor skills.

This quest is very straightforward; exhausting all possible dialogue options with Katrina will yield an experience reward. Note that she will not talk to a character armed with any weapon, as she encourages peace and diplomacy in the small community.
 * Characters with an intelligence of less than or equal to three do not have the opportunity to complete this quest. Katrina will not hold a conversation with a dumb character, simply stating that they are not competent enough to communicate. This ends her dialogue.

Reward

 * 250 XP for exhausting all dialogue options.

Appearances
Talk to Katrina appears only in Fallout.