Bonnie the staff puppy, submitted by Charlotte and Alice
It is important that dogs are given enough exercise every day; typically they should receive around 1 hours exercise per day. Some dogs will be more playful than others, but usually it is in their nature to play with other dogs.
Sometimes if a dog doesn't get enough exercise, or if it wants to spend more time playing, then it is important that you are able to supply it with some toys and occasionally help to entertain it too.
The best idea would be to purchase some dog toys so that the dog can play safely with them, without you worrying that the dog might decide to play with an old slipper or a valuable item. By giving the dog 1 or 2 toys it should understand that these are its toys, and that it shouldn't really play with anything else.
It is important not to over-pamper the dog or spoil it by giving it far too many toys. This will probably give the dog an attitude problem, and it will probably have trouble distinguishing between its own toys and your belongings, which could turn the dog quite possessive.

The best dog toys are the ones that don't really need any human input; the dog should be able to learn to play without someone being there to play with it. If the dog relies on having someone else there to play with it then it may become quite unruly or even possessive.
When you do play with your dog, you mustn't always play the games that the dog wants you to play, and you mustn't be forced in to playing a certain kind of way. Games with involve a tug-of-war between you and your dog are a definite no, as this can again make your dog become quite possessive and aggressive.
The ideal kind of game to play with your dog would be a game of fetch. By simply throwing a ball and asking the dog to fetch it you are playing a fun game whilst training your dog the fetch command, and games like this will help raise an obedient well-behaved dog.
If the dog refuses to fetch the ball, or simply gets the ball and wanders off with it you will need to re-train your dog the fetch command. Through the ball and give the dog plenty of encouragement to fetch it, and praise it highly when it gets the ball and then tempt it back to you, perhaps with a food-reward. Keep this up until the dog can collect and return the ball eventually stop rewarding the dog with food because it will realise by now that it is doing the correct thing.
Other games can be played with your dog, but just make sure that the dog isn't having everything it's own way and that it always fetches and returns any toys that you play with; never just allow it to keep the toys to itself or it will become quite a possessive, unruly dog.