International stylists have identified several common patterns in American fashion choices that can distinguish travelers from locals when abroad. These range from the ubiquitous use of athletic wear and logo-heavy items to specific grooming habits and evening attire, according to fashion experts.

One frequently cited indicator is the prevalence of athletic wear. Stylists note that Americans often prioritize comfort, leading to the widespread use of items like leggings, sweatpants, and branded athletic tops for everyday sightseeing. "People in America really like the idea of dressing comfortably," said Brooke Crum, a fashion stylist who organizes shopping tours in Japan. She advises that athletic wear should be reserved for its intended purpose, such as yoga studios or running, and suggests that when sporty items are worn outside of athletic contexts, they should be styled in a more elevated manner, perhaps by pairing a jersey with a blazer or a track jacket with jeans.

Muted, monochromatic athletic wear is more common among locals in Japan, offering a more cohesive look compared to the often brighter, separated pieces favored by some American tourists. In Paris, stylists observe that while Americans might dress too casually during the day, their evening wear can sometimes be overly formal. For women, this might involve special-occasion dresses and heels, while men might opt for a typical polo shirt, chinos, and sneakers, or a navy blazer, chino pants, and white shirt combination. Parisian style often leans towards less formal evening wear, with suggestions including silky dresses with oversized jackets or denim pants with blouses and heels for women, and linen shirts, cotton pants, and loafers for men.

Beyond clothing, grooming and accessory choices also play a role. American women are noted for often wearing full makeup, even during the day or in summer, and for having impeccably styled hair and nails. In contrast, Parisian women are often described as having a more natural approach to makeup, with a greater emphasis placed on shoes and accessories as key outfit components.

Visible logos on clothing and accessories are another hallmark that can signal an American tourist. "I think we avoid logos and choose timeless pieces that you can mix with your whole wardrobe," stated Anne-Victoire Lefèvre, a fashion consultant based in Paris. She suggests opting for classic combinations like a black outfit, or a white shirt with a top and jeans, paired with comfortable ballerina flats for a more chic aesthetic.

In Mexico City, a stylist observed a tendency for Americans to blend beachwear and activewear, even when visiting urban areas. The advice offered is to understand that different cities and cultures have distinct fashion sensibilities, and rather than trying to perfectly mimic local styles, visitors should focus on not appearing overly conspicuous. The key, according to experts, is to dress in a way that feels authentic to oneself.

Ultimately, stylists encourage travelers to embrace personal style and draw inspiration from their surroundings rather than strictly copying outfits. "I think you just have to play with fashion," said Nathalie Oliver, a private stylist in Paris. "And if [you look] in the mirror, and you think you are beautiful ... go out like this." The consensus is that well-fitting basics, versatility, and confidence are more important than adhering to a rigid set of rules for blending in.