1. The Color
For the first date, it is suitable to dress in such colors as pink, red and white, which makes you look better and easy-going. Many women, especially those with high prestige in the workplace, like to dress formally. The colors are basically black and white. But in a blind date, those dressed in black and white will look unapproachable. The colors like pink can make you look more cordial.
2. The Texture
The texture of clothes shouldn't be too stiff. It is appropriate to wear stiff clothes in the workplace, which reflects how sophisticated a person is and displays an air of power. If you want to look approachable, you need to wear the clothes with soft texture, so that the grace of women can be displayed.
3. The Design
If you think your arms look fat, you can wear the clothes with half sleeves to hide the fat arms. You will look slim if you choose the dress with a waistline. If there isn't a waistline, you can wear a belt to show your waist.
4. The Shoes
Petite girls should wear high heels. Wearing pumps looks more graceful. Tall girls don't need to wear high heels, whose height makes men feel stressful. They can wear flat pointed shoes.
5. The Purse
There is no need to carry a large purse. Some small and delicate purses are preferred, which reflects you are a woman who enjoys life instead of a working woman who needs to carry files everywhere. The color of the purse is supposed to go with one color of the outfit, whether the top, skirt or the shoes. They will be in harmony.
All the suggestions above can be considered on condition that you feel comfortable. If you feel awkward when dressing in this way, you may as well dress like you used to do. It can cause side effect when you feel uneasy and lack confidence by following the dressing rules.