What is when a girl asks how was your day?

When a girl asks how was your day, she might be genuinely interested in knowing how your day went. This could be a sign that she cares about your well-being and is invested in your daily life. She may also be initiating conversation and trying to build a connection with you. It's important to answer honestly if you want to maintain an open and honest relationship with her. Additionally, this could also be an opportunity for you to ask her about her day and show an interest in her life as well.