It is impossible to be in work mode all the time. Make sure you take time to relax. Play a game. Get a coffee. Go to lunch. Do something that is fun with your people. Let them see that you are still human and approachable. Learn what brings them joy and go do it with them. It is particularly easy to do this at a company retreat. Just make sure you do not overdo it! You never want your people to feel like it is a requirement or it will have a detrimental effect, the exact opposite of what you intended. Pay attention to your team. They will let you know when it is time to play and when they need space.