Ask them out after a few days of texting, timing and how

You don't need two weeks of texting to know if someone is worth meeting. What matters is the quality of the back-and-forth in those few days, not the number of exchanges. If you're both asking questions, actually answering each other's questions, and the tone is warm and a little flirty, you have enough signal. If the conversation is stilted, one-sided, or stuck on basic facts, more time will not fix that. Your job is to recognize good momentum when you see it and act on it. Three to four days of solid texting is a real green light.

Don't ask 'do you want to hang out sometime' because that is not an ask, that's a placeholder. She will likely say yes in theory and then you'll be back to texting. Instead, name the thing: coffee, drinks, a walk, whatever. Name when you're thinking, like 'Tuesday or Wednesday evening.' This tells her you actually want to meet her, not that you're testing her interest. It also removes the friction of her having to suggest a time and place. Keep it short. One or two sentences max. The casualness comes from not over explaining or asking permission. You're proposing something, not interviewing her.

Send your ask between 10am and 3pm when people are checking their phones for real, not at 11pm when she might see it right before bed and feel rushed. After you send it, do not send another message for at least 24 hours unless she asks something. If she doesn't reply in 24 to 48 hours, send one follow up message that acknowledges the silence without guilt. Something like 'Hey, no pressure if the timing isn't working' shows you read the room. If there's no answer after that, stop. She has given her answer.