Ok first off, women are simple creatures but us men are daft and don't realize this.
1. Women will notice subtle changes in your appearance, mannerisms and how you present yourself.
2. Women also take notice when change something about yourself for the better ie hair is kept nice and groomed, clean clothes, you smell nice etc
3. Women always want compliments which is why they change their hair, make up and clothing styles. But be careful what you say and how you say it. You don't wanna be a victim of the metoo movement. So proceed with an air of caution unless you feel confident about what you're gonna say.
4. Look good and smell nice
Wear clothes that fit too loose or too tight isn't a good look, shower and use good soap and body wash I use Tea tree oil based body washes.
Hair having neat hair or gently styled hair goes a long way same for having a groomed face ie trimmed beard, clean shaven face.
Teeth, brush those damn teeth and floss them too, use mouthwash after to help control bad breathe.
5. Join social activities and meet and greet people get out there and have some fun
6. Pick up new hobbies sometimes going to a store you normally wouldn't has some interesting results
7. Having some female friends help you in the long run, just remember they're friends and try not to be clingy about it. Eventually they'll introduce you to someone they know.
8.Lower your standards, men will date down and rarely up, women will always date up and rarely down.
Good luck boys and remember learn to flirt and don't let rejection keep you from preserving and keep trying, there's all sorts of women out there you just need to keep looking and trying.