When your girlfriend says she had a normal day, it's a great opportunity to show your interest and support. You can respond in a way that invites her to share more about her day and feelings. Here’s a suggestion:

"Sometimes those normal days can be the most relaxing! 😊 Was there anything in particular that made it feel 'normal' for you today? Or did anything interesting or unexpected happen? I'd love to hear more about it."

This response shows that you care about the details of her day and are interested in hearing more, even if it seems uneventful to her. It can open up a deeper conversation and help strengthen your connection.