Read Proverbs 6:12&13  Have you ever noticed that a naughty person is usually a sneaky person?  Verse 12 says that a naughty person has a smart mouth.  Here in verse 12 Solomon calls it a froward mouth.  And then verse 13 Solomon says that the naughty person uses 3 secret signals:  he winks with his eye, he speaks with his feet - under the table - and he wiggles his finger.  May be you are sitting at the table with two of your friends.  One of them says, "Hey, let's meet down at the playground in about ten minutes."  But then he winks at you so that the other friend doesn't see him winking. Later he says, "I didn't want to hang around with him.  He'll go down to the playground and then we'll be able to play with your Play Station in your room by ourselves."  He just lied to your other friend, didn't he?  He lied with his wink.  Or may be you are sitting at McDonald's and your naughty friend says, "I'm not going to baseball practice tomorrow."  But then he kind of kicks you under the table with his foot to give you a secret signal.  Later he says that your other friend might not go to practice tomorrow and get into trouble with the coach.  Your naughty friend laughs thinking about his lie and thinking about getting your other friend into trouble.  Then may be your naughty friend is telling you a secret when your other friend comes in.  When you start to tell your friend about the secret, your naughty friend goes, "Shhhh!" with his finger up to his mouth.  He wants you to keep the secret from your other friend.  He used his finger as the secret signal.  When you have a naughty friend like that, you had better stay away from them, because you can be sure that they are talking about you behind your back too!  A sneaky friend is sneaky with you too!  They will lie about you when they are with someone else.  They are not a good friend.  They are a lying friend.  They are a not a true friend.  Get red of them.  Don't listen to them.  They are trouble.