Miyamiya is a very delicate girl, so taking her by force is definitely not an option for those who don't want to scare her. On the plus side, she's easy to befriend and enjoys the attention of a casual snuggling so long as the ropework isn't too strict, so stick with simple materials like cloths or comfy rope. Her choice of skirts in her outfits make her a good target for leg-exposing ties, while her spine and hips are equal weak spots. Any gag that emphasizes either her eyes or her hair are good choices. So long as she feels safe, Miyamiya will remain calm and very snuggly.