Don't get into such a hurry that you cant share a joke with a crew member or fire back a wisecrack to another team leader. Even during a busy workday, you can spare the few seconds required for humor. Humor is, of coarse, subjective. Like anything else, it must be enjoyed in moderation and with the right degree of decorum. Keep it safe by laughing at yourself and never at others. Remember a remark coming from a co-worker can sound insulating coming from a supervisor. And, of coarse, avoid racist and sexist comments. But as long as you respect the boundaries, your bound to make your workplace a much safer and pleasant place to work.
     The Human Resource Management Team in your company generally will keep a close eye on such behavior to make sure, as mentioned above, it doesn't cross any boundaries. With HR Training and HR Support the company can continue to take time out for humor and still be a productive and well behaved company. The HR Management Team has all the necessary HR Procedures and HR Strategy's to lend their support if ever needed.