People appreciate it when you're clear and concise about asking them out. You can send a text that says something like, "Could I take you to a movie sometime?" You can also call and say something like, "I was wondering if you wanted to see a movie with me." Make a clear plan as well. Suggest a specific day of the week, time, and place to meet up. For example, you could agree to meet around six o'clock at a specific theater downtown on Friday. A movie date is more on the casual side, but that doesn't mean you shouldn't dress well. Opt for something dressy while still being casual. For example, a button-down shirt with jeans works well instead of pairing jeans with a t-shirt. Don't place too much focus on dressing to please your date. If you feel comfortable in your clothes, you're more likely to exude confidence on a first date. The matter of who pays for what on a date can get complicated. Sometimes, people may prefer to split checks on a first date. Therefore, it's a good idea to bring some cash in case a place can't split a check with cards. Get a variety of bills. If you show up only with twenties, splitting checks can get a little tricky. Make sure to have some fives, ones, and tens as well. While you may be inclined to cater to your date's taste, your date may get uncomfortable if they feel they're dragging you to a movie you don't want to see. Figure out a movie you both want to see together. Ask your date about the kind of films they like and pick something that appeals to your taste as well. For example, maybe you both share a similar sense of humor. Consider going to see a comedy.

TL;DR in Indonesian:
Ajak orang yang Anda sukai berkencan. Pilih pakaian yang tepat. Siapkan uang tunai secukupnya. Ajak dia memilih film yang akan ditonton.