A good reply to "everything okay... can't complain" can acknowledge the positive sentiment while offering a friendly and engaging response. Here are a few possible replies:
"That's great to hear! It's always good to focus on the positive. Anything exciting happening in your life lately?"
"I'm glad things are going well for you! Sometimes it's nice to have a break from complaining. How's your week been so far?"
"Awesome! It's a good mindset to have. I hope things keep going smoothly for you. Anything new and interesting on your side?"
"I'm happy for you! Positivity can make a big difference. If you ever feel like sharing a good story or two, I'm all ears."
"Fantastic! Staying positive can do wonders. If there's ever anything you want to chat about, I'm here to listen."
Remember, the key is to show genuine interest in the other person's well-being and continue the conversation in a warm and friendly manner. By doing so, you can build a stronger connection and keep the conversation flowing smoothly.