Yeah, meet them in the right environment and you're (istj) golden. aka if one of your friends knows the esfp and introduces you to her.. and you have frequent contact because you're in her 'group'. Makes things easier.
I don't know any ESFPs. Not well at least.
That´s great news.
As for me, the title of "most amazing ESFP" goes to my little brother.
"An intelligent hell would be better than a stupid paradise."
LII/INTj (Analyst) - 1w9 Sp/Sx - RC|O|EI - Melancholy/Choleric