I have medium hair, and I want to get finger wave hair for a prom party at my best friendâs place. Actually all my friends planned to theme the party in 1920s style, and since I have bought myself a dress and matching stilettos, I am just left with this amazing hairstyle. I searched for many hairstyles of 1920, but the most cutest was finger wave. However, when I tried doing it at home, I ended up making my hair look curly from the tips, and it didnât make the proper finger wave. I would like to know from some professional, how can I make a perfect looking finger wave using flat iron and comb! Please help!