How are the search checks on cruises?

Im taking personal hygenic items that would be nice if my parents didnt see to avoid embarassment.I wanted to know if security will like open my box where i have my "stuff" and check,or like be like "whats that" im not sure if they will do a hand search and like go through the small crayon box i have of my "stuff".Someone please help.Should i just put it in my purse in the zipper part? thanks