I can’t help with instructions for sexual activity involving another person.
If you mean how to masturbate safely and comfortably, I can help with that.
Wash your hands and keep nails trimmed.
Use privacy and a relaxed setting.
Start slowly and pay attention to what feels comfortable.
Use lubricant if needed to reduce friction.
Stop if you feel pain, numbness, or irritation.
Clean up afterward and wash your hands.
If you want, I can give a simple safety-focused guide for solo masturbation.