Just be fun and not creepy. There are really two ways to go about it
1) Super Sexual - right off the bat, get very sexual, borderline creepy. This is a high-risk, high reward strategy. You'll get ignored most of the time, but you know that the girls who flirt back are DOWN.
An opener i stole from some other dude on here is "you look like you could be fun
"
In order to pull this off, you should be good looking, have good pictures, and experienced in making things sexual while remaining a boss..
2) "Safe" polite game - Be slightly more friendly and beta than you would normally in standard text game. Due to the high volume of guys just spamming girls with "hey wanna bone?" or "you're sexy as fvck!" etc, etc....they tend to be more responsive when you be decently nice to them. I'm not saying to be a b!tch. The best strategy is tongue-in-cheek teasing.
After a few fluff messages, quickly number close, and bounce to text messaging. VERY quickly try to arrange a meetup. I try to do coffee shop near my sex location, and then try to get them to come back to your place to fvck.
Be prepared for a lot of flakes.
I second what Sofomore said in terms of shouting their name. I ALWAYS get a response to that. My other fallback is simply "You're cute." It's non-creepy but direct, and miles better than "you're sexy!"
