So a little extra communication can go a long way. Wasting your time on a woman is one of the biggest mistakes that guys make. Don't waste your time with someone who does not seem interested, but if she does seem interested then be persistent, whether that be someone you are trying to pick up at a bar, or someone you see regularly at work.
Better than if a local used a piropo. Maybe she's yawning repeatedly when talking to a needy girlfriend, or she keeps rolling her eyes at the group of loud bros she showed up with. Admin ,