It is not rude to text a girl first, especially in that early phase after you just got her number. Promptness can be considered a sign of seriousness, so if you stall on reaching out, she may think you properly don't like her or you changed your mind about her, and that is why you didn't text.
It's often caused by feeling embarrassed, hot or anxious. Sometimes other symptoms you have might give you an idea of what's causing it. Some medicines can also cause blushing. Check the side effects of any medicine you're taking to see if blushing or flushing is listed.
Say, for example, the three-day rule. Popularized by the romcom, the three-day dating rule insists that a person wait three full days before contacting a potential suitor. A first-day text or call is too eager, a second-day contact seems planned, but three days is, somehow, the perfect amount of time.
So the answer to the question How often should to text a girl you just met is: Text her as much as you told her you would. If you didn't tell her anything, than this is your answer: You want to text her quick, but not too much. Your goal is to get her to feel positive emotions from you, and to get her on a date.
"Heyyy" is a playful, friendly greeting that is often used as a form of flirting. You can respond with your own playful "Heyyy :D", or be even more direct.
Probably not, but in some cases, she might. She might not text back, which can feel like a terrible rejection. But there are other ways of rejecting you that she might use. If you text her a lot and aren't interested, she might text to explain that she doesn't want to receive your texts.
Sometimes, people blush because they are simply prone to blushing. You can tell the blushing is because of you if it happens more when you're around. If she blushes and turns away or even tries to apologize because it happens so much, it's probably because she knows that it's a tell that she's very much into you.
Blushing is a natural bodily response that is triggered by the sympathetic nervous system — a complex network of nerves that activate “fight or flight” mode. Those who are easily stressed or have anxiety disorders or social phobias may blush more than others.