Girls, How to attract girls?

Id say Im a decent looking chubby looking 20 year old and honestly I fell like whenever I’m interested in a girl I’m just instantly ignored. For example, I was going out with some friends and a girl I liked was there and I was trying to make a move while trying to keep it subtle. Then after going to get a drink I find her making out with somebody literally in the middle of the club. Like I don't know if it’s just me or if I’m doing something wrong that I don’t know about. Any recommendations please lmk.
Girls, How to attract girls?
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