Posted this advice in a similar thread. Carry as few things as you need to in your backpack, don't make it look like a burden. Do not run in the hallways and do not bump into other people! Above all, remember this. As a freshman, you will be hated. It's just absolutely natural. Every freshman wonders why they're hated, then when they become a sophomore, and everything above, you start to hate freshmen. It is perfectly natural, don't get offended.