geek v. nerd

from wikipedia:

geek: a peculiar or otherwise odd person, especially one who is perceived to be overly obsessed with one or more things including those of intellectuality, electronics, gaming, etc.

nerd: a person who passionately pursues intellectual activities, esoteric knowledge, or other obscure interests.

furthermore, it is commonly believed that nerds are socially awkward, but in the new generation of nerd, this is not necessarily true. nerds can be simultaneously nerdy and cool.