When choosing an outfit for a dinner date, it's important to consider the occasion, the venue, and your personal style. Opt for something that makes you feel confident and comfortable. For a more formal setting, classic polo tshirt would be appropriate. If the dinner is more casual, you can go for a stylish tshirt paired with well-fitting trousers. Consider the colors that suit you and try to coordinate your outfit accordingly. Ultimately, the key is to strike a balance between looking put-together and staying true to your own sense of style.