Gender reveal party

Katie • My name is Katie, I`m 25 and having my first child. Wishing my love was with me, miss him everyday
My best friend and I decided at 18-20 weeks when we find out the gender that a gender reveal cake would be such a fun way to share with the family. However I have never done one before. Has anyone had one? How did it go? Is it more of a baby shower thing or is it its own separate party?