There are silliness that can be done with them. Starting from ignorant action to each other vent and it. But as time passes when we can be called an adult, more and more tasks and responsibilities are charged. On the other hand, the time for friends becomes less and less. You and your friends so rarely meet, togetherness of the past is only remembered in a vague memory.
That's when maybe you should think about staying in touch with your friends. No need to meet each day as before, just do some activities to spend a special time together. it is also beneficial for your mental health too lho. When dizzy with work, you can get entertainment by gathering and exclamations with friends.