People develop first impressions of you even before you open your mouth.

Research suggests that your appearance affects how trustworthy, promiscuous, and powerful people think you are.

You can change some people's first impressions of you by changing your behavior and how you present yourself.

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A lot of first impressions come from things we can't control at all — our natural scent, how "baby-like" our faces are, and whether or not we need to wear glasses or are bald.

For instance, men who have feminine facial features, like thinner eyebrows and a pointier chin, are more likely to seem trustworthy.

There's not much that folks who want to give off a good first impression can do about their facial structure, though they can change their body language by enacting small changes like smiling more, making more eye contact, and nodding.

Keep reading below to find out what other judgments people make about you within seconds of meeting you: