of all the letters in MBTI the I/E dichotomy seems the hardest one to pinpoint imo.
i for one am an extrovert, although i'm not exactly a party man but i am pretty social, i go out a lot but not with that many different people.
if for some reason i don't go out too much for, say 1-2 days, i start to be a bit bored and feel that i am somewhat stagnant, i like to read and listen to music and watch movies (i'm a lover of movies) but still, that day without much socializing feels a bit...lost. it's a completely manageable situation for about a week or so, but afterwards i pick up the phone and start calling people to see who wants a beer or something.
also, i'm curious if other E's start a lot of conversations with random people, coz for sure i don't, and if some random person starts a conversation with me 70-80% of the time i quickly put an end to it (politely of course), it's completely the other way around however when i'm with people that i know, even if i know them very little (as in i barely know that person's name).
same thing for other E's?