Why Dress to Look Expensive?
It’s common knowledge that clothes have a strong influence over the way other people perceive us; you may be talented and qualified, but sweatpants at a job interview probably won’t communicate your ambition to a potential boss. Clothes don’t just shape the way other people see us. Different studies and researches find that the clothes we wear can also influence the way we think. And that dressing to impress did in fact enhance people’s ability to engage in abstract thinking.
“The formality of clothing might not only influence the way others perceive a person, and how people perceive themselves, but could influence decision making in important ways through its influence on processing style,”
Regardless of your reason for dressing well and looking more expensive, make it a habit to dress nice everyday, even on the weekends and see how it makes you feel. Don’t just dress for the job you want, dress for the life you want.
Here are some bullet points to what do do and not to have that sophisticated polished look:
Proper fit. You want to make sure your clothes fits you well. They should not be neither too big and looking loose, nor too small and tight. Simplicity is Key. When it comes to trying to look expensive, less is more. Avoid flashy details like jeweled items, or complicated styles and distressed denim. Instead, opt for a clean, simplistic style made up of solid colors that fit you well.

Avoid too many logos
Some may disagree, but you do not want to look billboard instead of a style icon. For an expensive, sophisticated look we are leaning more on classic pieces and universal style, rather than showing logos.
Wear Timeless, Rich Colors. Colors such as black, white, navy, and burgundy are timeless and coordinate very well together. Be careful with bright colors and prints/patterns.
Black and White is the Best. The two most popular colors in the fashion industry. You never go wrong with black and/or white. They match with almost any other color and suit a wide variety of different styles. Just make sure if you are wearing all black or all white, that they are the same tone.

Fabrics. Investing in a slightly more expensive shirt made with a better fabric will outlast a cheaper shirt made with cheaper fabric. so in the long run, you will save money by going with quality fabrics. Opt for natural fabrics such as silk, high-quality cotton, linen, and wool. Match Accessories Top your outfit off with additional accessories. A quality handbag, matching your shoes is one of the most effective ways to create an expensive look. A scarf will up your style and add a bit more dimension to your look. A simple piece of statement jewelry such as a necklace, earrings, bracelet, or quality watch can be the highlight of a basic, inexpensive outfit.

Invest in quality shoes. Similar to bags, you’ll want to pay more attention to the quality of your footwear. Like a nice bag, a nice pair of shoes can make a less expensive outfit look polished and more expensive. Invest in quality leather or vegan leather shoes and keep them clean and looking nice. Pay Attention to Details. Expensive clothing is all about the fine details: quality fabrics, designs, and finishes that indicate high quality and high cost. You don’t want to wear any clothes that have stains, holes, loose threads, ripped seams, or are missing buttons. Keep Your Clothes Cean and Polished. A more expensive outfit that is stained or wrikled will look way cheaper than a less expensive one that is clean and neat. A good practice is to steam/iron your clothes. And rather than rewashing over and over, take your piece of clothes to the dry cleaners, if there is a stain that you can't remove.

Pay Extra Care for Your Grooming and Personal Hygiene. Nothing destroys your perfect look more than looking desshaveled, even with a $10,000 outfit. If you want to look prestegeous, make grooming and personal hygiene a priority. This indicates that you respect yourself and others around you, and that you can take care of business.
keep your Hair fresh, healthy, and styled; your Nails manicured; brush and floss your Teeth daily; make sure you smell good; use deodorant, fragrance, and/or cologne; and for women, when it comes to Makeup, less is more.