I usually say something like this "Good got some work done, met up with a few buddies, and relaxed in a jacuzzi. Only thing missing was a bit of (her name). Alex shows this layout in one of his videos. You don't have to say those things either of vourse you mix it up to your liking. The goal is to not come off boring to the chick

Bro. It's not a trick question. Just go with any number of potential responses when a girl asks your day. If you're really stuck, you can say "Good. Just finished a big workout. Looking sharp for our romantic date"