Signs that someone is interested in you can vary depending on the individual, but there are some common indicators to look out for. They may maintain eye contact, lean in when talking to you, and display open body language. They might also engage in playful teasing or find excuses to touch you subtly. Additionally, they may actively seek opportunities to spend time with you or initiate conversations. However, it's important to remember that everyone expresses interest differently, so it's best to communicate directly and openly to avoid misinterpretation.