(First of all: sorry for my bad english)

It happens lately very often to me, that girls don't reply to my messages. Wether it's just the first one or we had a little conversation before or even after days of chatting. To my person: I'm 20 years old, pretty tall and thin physique and medium goodlooking. I avoid messages like simple "Hey"s. I rather start a conversation with a little joke, something, which is related to the Person or just reacting to a Story on Instagram. When it comes to a conversation I try not to be overzealous. I maybe give a small compliment, when I get the chance. Often I recieve short answers without any counter-question. But I still keep going asking questions about the Person. I also don't use too many Emojis (0-1 per message). Does somebody have any good tipps or tricks?