I will fall for these every single time
  1. when a character says "no of course I'm not in love with him/her" while staring at them adoringly
  2. when they yell at each other about the quirks of each other that they love so much
    I'm looking at u when Harry met Sally
  3. arguing in the rain
    because of course
  4. bickering...lots of it
  5. when characters start off mildly hating each other but get put in situations where they realize they're actually quite similar
  6. kissing under the stars
  7. A character accidentally revealing they're in love with another character
    Like Chandler and Monica in Friends 💕
    Suggested by @alexim