Summarize:

Once you've introduced yourself and you've spoken to your crush, you can ask for their number without making a big deal of it. Ask them for their number in a way that doesn't seem awkward or like you're hitting on them so you can text them. Try asking them for their number so you can both reach out if you need to know something. For example, you could ask them something like, "Hey, what's your number in case I need to reach you?" Don't make it weird by asking them for their number the first time you meet them or they may be creeped out and won't want to give you their number. After you get their number, send them a message saying hello. Include your name and a very brief message so they can save your number in their phone for any future text conversations that you have. Send them a friendly message like, "Hey, it's Jack. Got your number saved! Thanks." You can send a smiley face or a friendly emoji with your message so they can tell that it's lighthearted. Making your crush laugh is a great way to get them talking to you. Send them a meme or joke that you know they'll think is funny to get a conversation going or to add to an existing one. Send them something that's specific to their sense of humor so they can see that you've noticed their interests. For instance, send them a funny meme about You can talk to your crush without any pretense or pressure by starting a group message that includes them and some friends, classmates, or coworkers. You can send jokes, funny memes, or use the group chat to plan meetups and events with the group. Use a real reason to start the group chat so it's not weird. For example, if you're in a class with your crush, create a group message and start it off with something like, "Hey guys, this is Sarah, did anybody do Mr. Smith's homework? I'm struggling over here lol." Your crush may think you're just interested in them as a friend if you only talk to them in a group message, but it's a great way for you to show them your funny or friendly side. If you want to talk to them more intimately or flirtatiously, text them directly. Use the informal nature of texting to your advantage and ask your crush if they want to meet up. But keep it casual and without any pressure so there are no awkward feelings and you don't seem pushy. For example, text your crush something like, "Have you tried that new ramen place? I'm craving noodles right now, you wanna check it out?" If your crush denies or rejects your request, don't get any hard feelings. Say something calm and laid back like, "No worries! Some other time then."
Ask your crush for their phone number casually. Send your crush an introductory text so they have your number. Text funny memes to your crush to make them laugh. Start a group chat with your crush and mutual friends. Invite your crush someplace casual where you can talk.