What are the main characteristics of a toddler boy?

For example, I have a toddler boy that is about to turn two in less that two weeks. He is very aggressive, macho. Rather than hugs he would rather get on my belly and jump up and down, he's so rambunctious is this normal toddler behavior for a boy. My main question is what are the typical characteristics of a toddler boy and should I be concerned that he is so independent and not really affectionate toward me.

My son is 17 mos, and he's rambunctious. He like's to play alone, he gives kisses but most times you have to take them from him :) He likes to bodyslam the pillows and his dad. It's normal, as long as he's happy. Toddlers like to run, slam, throw, jump, and get dirty, it's all good. Be thankful he's not as needy as other kids are!

That is how my boy is. He is 18 months. I am trying to teach him to be more gentle because I am pregnant again. He runs, screams, jumps, doesn't want to be held or cuddled. He can wear you out in a heart beat.

Just depends on the personality of the child. My boy was, and still is a snuggler, but my DD is not. It has been important to me to find ways to show DD affection in ways other than hugs and snuggles such as brushing her hair or tickling her feet.