Social task - I want to bro hug a neighbor's sim.
Use an adult sim for this task, I first thought that I needed a male sim but I don't think gender matters. Here you fist have to build up a "god friend" relationship with a sim in your neighbors town. Keep doing greeen social task such as "Be nice" to one specific sim and they will soon become good friends and the option should become available.
Go to you neighbor's house and go to the house where your good friend lives. Click on the sim and select option Bro hug.