I don't think you can. It's a shame! But you can use a police car and turn the sirens on by pressing the right analog stick; cars will move out the way.
In GTA and in Saints Row, there are no turn signals, you just have to turn without them and hope no-one crashes into you!
You can create anyone you like
No.
no
yellow
Yes you can get a knuckleduster. You have to find it at your saints hideout where one of the shanties use to be.
don't use cheatcodes and you will get achievements
You can't!
It depends, if its for xbox 360 on saints row 1 it is the right analog stick and on saints row 2 it is the left and you have to press them down if its for any other platform i do not know.
Use satchels or a ar 50s grenade launcher
u cant ride a skateboard but u can use it as a weapon
Yes, you use either a LAN, or your consoles online services.