How can I be attractive to a girl I like?

Here are some scientifically-backed ways to increase your attractiveness, according to research, which may help in attracting a girl you like.

Physical Appearance Enhancements

Here are some things you can do to improve your physical appeal:

Wear Red: Studies suggest that the color red can make you more attractive.
Grow Stubble: A bit of stubble, but not a full beard, can boost your attractiveness.
Improve Posture: Standing tall and confident is key. Make sure to stand up straight, and pull your shoulders back.
Don't Over-Smile: While a smile is great, constant smiling may not have the desired effect. It is also good to have a confident look, which is difficult to portray if you are always smiling.
Work Out: Hitting the gym and focusing on specific muscle groups can make you more attractive.
Increase Sweating: Strangely, some studies suggest that sweating more may help, although this is not always desirable and may be situational.

Apart from physical changes, consider these behavioral adjustments:

Tilt Your Head Up: Angling your head slightly higher can give you a more confident appearance.
Show Your Scars: Scars, particularly on the face, can make you appear more masculine and interesting.

To be more attractive, consider these actions:

Category	Specific Action	Why it helps
Clothing	Wear red	It's associated with attractiveness and confidence.
Grooming	Grow stubble (not a beard)	Adds a masculine touch.
Posture	Improve your posture	Projects confidence and self-assurance.
Behavior	Don't smile so much	May signal more seriousness and confidence.
Fitness	Get to the gym	Builds muscle, which is perceived as attractive.
Biology	Increase sweating	May unconsciously make you seem more appealing.
Body Language	Angle head up	Enhances confidence and presence.
Body Language	Show scars	Can increase perceived attractiveness.

By focusing on these points you can increase your chances of attracting the girl you like.