They should be able to convey deep emotions. For example, they need to show love, passion, and sometimes heartbreak very convincingly. Just like in 'The Fault in Our Stars', Shailene Woodley and Ansel Elgort were able to make the audience feel the intense love between their characters through their expressions.
Good chemistry with their co - star is essential. In a love story, the interaction between the two main actors has to seem natural and believable. Take 'La La Land' for instance. Ryan Gosling and Emma Stone had such great chemistry that it made their on - screen love story very engaging. Also, actors in love stories should have the ability to be vulnerable on - screen. They need to let the audience see the softer, more emotional side of their characters, which helps in making the love story more relatable." "Answer3": "An actor in a love story should be able to adapt to different types of love stories. Whether it's a tragic love story like 'Romeo and Juliet' or a light - hearted romantic comedy, they need to be able to adjust their acting style. For example, Audrey Hepburn in 'Breakfast at Tiffany's' was able to bring a unique charm to the rather complex love story of her character. They also need to be able to communicate a lot without words, through just their body language and facial expressions, which is very important in love stories where sometimes the unspoken feelings are as important as the spoken ones.