Having a text conversation about your crush’s day or interests is a good way to show you want to know them better. Just don’t let the conversation drift into more mundane, generic topics, and don’t keep your crush waiting too long before you ask them out. The quicker you pop the question, the more likely you’ll have their full interest and get a good response. If you’re asking your crush to go on a specific date, focus the conversation on that. For example, if you want to take them to a movie, talk with them about a new release. When asking your crush on a date, include a kind comment explaining why you want to go out with them. This will make them feel good and open them up to the idea of a date. Some text ideas include:  “I really like talking with you. Would you like to grab coffee together sometime?” “I’ve been thinking recently, would you like to go see a movie with me?” “You seem really wonderful. Would you be interested in grabbing dinner?” Make sure your crush understands that you want to take them on a date, otherwise they may think you are just inviting them to go out with a group of friends. Use clear phrases like “Want to go out?” instead of vague one like “Want to hang?” If your crush says yes, follow up immediately to make the necessary plans. Look for a day and time that works for both of you, then figure out a place to meet. Have concrete plans in place before you end the text conversation. This will show your crush that you’re interested and prevent confusion down the road. Give them some space and, in a few weeks, talk with them again as just a friend. If your conversation goes well, the dating doors may still be open. In the meantime, make sure to take care of yourself by hanging out with friends, getting out of the house, and staying active.

TL;DR in Vietnamese:
Tập trung vào mục tiêu. Mời họ đi chơi bằng một lời khen. Hãy thật cụ thể khi mời người ấy đi chơi. Lên kế hoạch chi tiết về ngày hẹn hò. Đừng lo lắng khi người ấy từ chối.