What are some tips on making your characters come to life. I don't want my characters to be boring and dull. How can I make them relatable and believable and funny? Are there any procedures or tips you have for me?
Connecting characters to a particular gesture can be a nice way to physicalize and personalize them.
For instance, a father character might run his hands through his hair while mumbling to himself every time his child does something crazy.
Repetition is key to creating a fictional world, especially in long form fiction. Repetition also creates patterns and expectations, setting up the potential for surprise and humor when those patterns are broken.
People-watching is a great idea. Be observant about how your friends and family interact with each other--not just what they say, but how they respond, facial reactions, body language.
I also recommend reading some modern, popular writers who employ great characterization. Learn from the best.
Listen to how people talk and give your characters an opportunity to dialogue with each other in a way that sounds realistic. Most young writers either skip dialogue altogether, or make their characters sound like they are reciting an essay.
Start by creating some character sketches. Fill out a profile of sorts. What does your character like to do? What are his / her pet peeves? What are his or her flaws? What sort of family background does he or she have? What kind of people does he or she confide in?
Make them and characterize them as you would you friends or people you know, try to make them normal or spontaneous, fun and random. Watch people, see what they do, observe, that's the best way you can make things realistic :)