For one of the She-Hulk awakening challenges in Fortnite, you'll need to visit Jennifer Walker's office. You'll also need to wear the Jennifer Walker skin while you do this. You will get the Jennifer Walk at Tier 22 of the Battle Pass to get the Jennifer Walters skin. After that, you'll need to reach level 29 to access his Awakening Challenges.
To find Jennifer Walters office, you will need to go to Retail Row. You can find his office in a nice white building just outside of town. You don't have to do anything complicated, just visit the building. He is easy to spot thanks to a large plaque on the outside which indicates the name of his company.
This is just one of the Awakening Challenges for Jessica Walters, to give you the chance to turn her into She-Hulk. You'll also need to emote right after smashing vases, a fun reference to both Zelda and the set of “Hulk Smash!” thing.
It also strongly implies that Jennifer has been around for a while, which actually makes sense. If you go to visit the Authority, you will notice that it is falling into disrepair. Henchmen camp there, there are cobwebs everyone, and Jules seems to have packed most of his stuff and even emptied the safe.
Awakening challenges are all about making heroes realize who they really are and embracing their superpowers, so it's kind of fun to watch it happen in-game.