Secure these tightly with hair bands, also close to the scalp. Use a wig cap if you like over your hair, then position your wig. This appears to be a soft, elastic plastic band that is worn around the head where the hair line would be if you had hair. Your wig is then anchored to the comfy band. You might check out the customer service on those sites and see if this device would do you any good.
Standard disclaimers apply here.
I'm neither Paula or Lori, I just wear and like their stuff. If so, you can set the wig slightly back, and incorporate your own bangs to give a more natural look. It's a good idea to wear your hair piece around a bit before using it in performance - perhaps to classes. I'm not at THAT point yet, but I do have two wigs to choose from for performances. But just to be sure, I bought the spray they had on their website as part of my first-time buyer wig kit.