Heart = courage.
No fear = you can't tell, especially if there's two or more in the group. (You might be able to psych out a single person, but, again, one can never tell.)
Generally, it's best to avoid a street fight, especially against more than one opponent, because there are no rules.
You could always talk up boxing or martial art courses. They will train your body and your mind. It is good to have courage, but you really should be able to back it up because if they go at you, even if you have no fear; you'll get beat up. You need both, not one without the other.
Learn to fight son, always remember they cant kill you!
Never show your fear, when you show fear, they will use this opportunity to exploit you. Get some boxing/ kick boxing lesson.
I wish I could teach you to fight.....
Take a knife out with you or if you can get a cheap firearm in the black market take that with you and if anyone tries to rob or beat you up you try to stab or shoot them.
Basically, I'm sometimes afraid to go out because I think someone's going to rob or beat me up.
I'm scared of a group of boys,
My uncle says stop being a wimp you're 18 now, show no fear to anyone. You need to have heart, what is heart?
If you show no fear, will they pick on me?
He said if think you're going to lose in your head, you've lost already?