Watch mha then get hooked. When you get hooked into this anime you will find you like one of the characters. If you can watch mha then simply think of your crush and what they had said to you in the time you have known them. You want to imagine the time that they were closest to you and re-imagine that scene, you want to imagine them kissing you on the cheek very quick then they start to blush and smile so they look to the side.

This trick worked for me so I hope it works for you