Actually we do see a lot of Peter's personality despite him not saying much unless in certain specific moments(I never count skateboarding as a personality trait and more as simply a mode of transportation because as he only really shows any skill after he got his powers and was testing it out in the warehouse) He doesn't really act out or shown to be outgoing until we see him as Spider-Man or Gwen learns his true identity but I feel like we do see a fair amount of the person Peter is like and that's what makes him relatable because I was like that in a sense in a few years of middle school and when I first moved to a new high school before I found clubs/friends I could hang out with but Peter had to literally create a new identity that allows him to do more which then influences him to become more outgoing and lively as Peter Parker starting with when Gwen finds out his secret identity and then at the end of the movie after Captain Stacy got Peter to make that promise as he was dying and he heard Uncle Ben's voice message/last words. Peter is used to being a punching bag/loved to stay in the background:Look at the way he took it in stride when Flash hit him with a basketball on purpose and shrunk back when Flash pretended to be about to hit him, and look at that part where he had to squeeze past a couple blocking his locker (who completely ignored him). Everything in his body language got across that this is a guy who is used to being treated like garbage. or how everyone except Flash and Gwen seemed to avoid him after his uncle died, usually sitting in the back quietly. You don't see Peter studying or know what his grades are like in school and except for two teachers(one who tells him not to skateboard and one who berates him for being late)we don't see his relationships with his teachers and to be fair we didn't see it in the Raimi movies either. We just see Peter moving through school just another fly on the wall in a sense. (until others get bullied): Peter telling Flash to put the kid down. After powers, Amazing Peter Parker didn't do anything to Flash until Flash picked on some girl (Peter might have been so eager because he's partly getting a little sweet revenge for himself and having fun showing off, but still). Awkward in social situations: struggling to ask Gwen out and explaining why he had Gwen on his computer, picking at the fish while the Stacy family is laughing and being social, instead of being able to properly tell Dr.Connors how he figured out the decay rate algorithm instead of giving a proper answer he simply taps his head with a pencil,his conversation with Sally Avrill who asked him to take pictures of her boyfriend's car, his clothing looks like they are meant to blend in as opposed to the brighter primary colors he wears as Spider-Man and the clothings he wear after Captain Stacy's funeral and listening to Uncle Ben's message. Even with his Aunt May and Uncle Ben he can act quiet and awkward. quips: as Peter before he becomes Spider-Man: "that's my uncle he's a pathological liar", jokes he made after Gwen found out he's Spider-Man:"You should see the other guy. The other guy, in this instance, being a giant mutant Lizard." (when he entered Gwen's room injured from the fight with Lizard in the sewers) Talking to Gwen on the football stadium about the spider that bit him "yeah it got a hell of a bite there", "chocolate house?". as Spider-Man "Uh hum a little advice if you want to steal cars don't dress up like a car thief" "Really? You seriously think I'm cop? In a skintight red and blue outfit. You got the mind of a scholar. I was thinking more of the guys who do the luge. good thinking. Good thinking. Get out the window. " "Crotch/look out." When he hits the car hacker with his crotch and flips him to the ground When he hits the car thief with webbing "it's webbing I developed myself. I don't think you really want to know what's in it." The fake sneeze hitting the car thief with the webbing "Oh boys in blue here", "really I did 80 percent of your job and this is the thanks I get."" no one seems to grasp the concept of the mask." "Hey I'm swinging here. I'm swinging here!" when he was swinging under the bridge while dodging the cops Bridge scene "do me a favor and hurry up a bit" when he was saving jack from the burning car high school fight scene:"that is disgusting: when the ripped off Lizard tail is on him, "Alright you don't want to talk (webs Lizard mouth shut) there you go", "uh oh looks like somebody's been a bad lizard" The library/Stan Lee scene when he was dodging the Lizard he was also throwing books at him as well before he caught the desk as it was about to hit Stan/The Librarian and threw it back at the Lizard as the sneakers he threw at the Lizard when he changed into Spider-Man in the chemistry lab Genius besides him creating the web shooters: the scene between Uncle Ben and Peter where he was able to figure out how/why the pipes and basement flooded , the electric lock on his door, in some interviews/viral campaigns they revealed he writes scientific equations on his skateboard, him being able to figure out the password from a distance (which is the most farfetched part in the movie), attaching a police scanner to his phone/ipod, his work in the lab with Dr.Connors figuring out a way, using a giant web in the sewers in order to track the Lizard using vibration in a way similar to not only how spiders track their prey (as well as a move he used in a comics called Spider-Man:the other where he used that trick to find a little girl in an apartment building that collapsed on itself)﻿ As for the Lizard/Dr.Connors, his motivation was a more extreme version of what he wanted in human form but honestly I only feel like besides a few missing scenes that could have better helped/defined his character, he was a mostly solid foil to Spider-Man and really close to some portrayals of the original Lizard in a lot of ways.