Sometimes a participant in a freeform may behave in a way that makes it difficult for other players to enjoy the game, particularly when you need to come to a mutually agreed upon resolution of a task. Here are some of the different behaviours that are unfortunately adopted and suggestions to help you deal with them.
We classify the difficult behaviour by a general type to identify it – not to pigeon hole a player into that mould. Remember, it’s the behaviour and not the person that is the problem, and if you can find a way to circumvent or prevent a difficult behaviour then everyone is better off.

The Know it all: this player is constantly trying to control the conversation, often saying “I have tried that, or it doesn’t work, or it won’t work”
Give the person a time limit on speaking. Allow them to have their say, then make sure everyone else present gets the same amount of uninterrupted time.

The Disinterested player: not interested in resolving anything. Believes that they are above whatever you are trying to talk about.
Try to awaken their interest by asking their characters viewpoint on the subject at hand.

The Talker: talks about everything but what you want to talk about.
Cut the player off when they stray with ‘aren’t we a bit off topic?”

The Shy player: has ideas and something to say but has trouble expressing it.
Ask the player questions. Bolster their confidence. Notice the contributions of the player. Give the player something to do.

The Distracter: this player appears distracted constantly, and distrusts what others have to say.