Take a stretch / exercise break. Stand up and stretch. Walk around your building as fast as you can, and time yourself. Try to beat that time during your next break. Go up and down the stairs in your building a few times. Whatever works best for you, you'll find that a short stretching or exercise break – even one as short as five or 10 minutes – gets your blood moving, recharges your energy, and invigorates your workday.

Find a mascot. Pick out a fun mascot and display it in the office. Then use it to cheer up the salespeople in the team by leaving it around the workplace. When picking a mascot, go for something unusual and funny – like the gorilla – that will make people smile just to look at it.

Humorous captions. Look in newspapers and magazines for photos of people in business situations. Post these in the office, and invite people to come up with humorous captions for them. This is a great way to help salespeople let off steam about their sales frustrations in a light hearted way.

Create a "Top 10" list. Create a Top 10 lists of things that the sales team is going to do. The sky's the limit on topics. To get you started, try "The Top 10 reasons the sales team is going to beat your company’s biggest competitor in sales this month" or "The Top 10 reasons why the CEO of your company can’t sell”.

Say It : Don't Say It contest. A fun way to raise people's awareness about the words they choose is to have a Say It, or Don't Say It, contest. In the Say It contest, you come up with a word or phrase that people normally wouldn't say, or a phrase they don ‘t normally use. The person who can work the word or phrase into conversations most often in a day wins a prize. Alternatively, pick out a word or expression that salespeople have to avoid for the day. Each time a person uses the expression he or she is penalised.

Recognize employees. You probably already have a formal recognition programme in place. Now find a fun, novel way to honour and recognise people on the sales team, every day? Look for reasons to celebrate. Maybe a new salesperson just got an appointment with a hot prospect, or someone just gave a dynamite presentation. Whatever the reason, mark it in a small, fun way.

If you're thinking, “we don't have time for fun, we need to get serious about selling”, it's important to keep in mind that injecting fun into the workplace is ultimately about results. When salespeople are happy, motivated, and energised, they'll be more enthusiastic about coming to work, and improving performance.