When testing lookalike audiences in the adult niche, you don't need to start with a huge budget. Even a small daily budget like $10 to $20 can give you an idea of how the audience responds. The goal at this stage isn't to make big profits right away but to gather useful data. With that data, you can decide whether to scale up or adjust your targeting. It also helps to keep your creatives simple and direct, so you know the results are from your audience, not from confusing ads. Also, test one lookalike group at a time so your budget doesn't get spread too thin. If the results are promising after a few days, you can increase your budget slowly. Every campaign responds differently, so starting small is safer. What would you try first when working with lookalike audiences in this kind of campaign?