The Sims 4 Collectibles: Postcards
To collect postcards, Sims will have to meet and write to online pen pals. Sims will need to “Find a Pen Pal” using the “Socialize” interaction on the computer. Once a request has been sent, wait a few hours for a response. Check for responses using the same socialize interaction on the computer.
Once your Sim has successfully met a pen pal, send at least one letter to your pen pal using the Socialize > Write Letter To > Location interactions on the computer. This unlocks the ability to ask for postcards.
Considering the rarity of a few of the postcards, don’t expect to receive them in the mail just because you asked for one. The rare postcards may take a few extra letters, and a lot more asking. Once you have postcards to display, purchase the “Bunchapals Postcard Corkboard” to hang them up.
Enable Emotional Aura: Postcards will give off an “Inspired” Aura if you choose to enable it. This automatically guarantees the specified emotional state of all Sims who are near the postcards.