In my experience - they'll be fine with you one-on-one but may try to socially bully you when in presence of their "true" friends or such.
Not that I'm the master at choosing who to hang out with, mind you.
I agree with this perspective. The ESTp that I knew well, would frequently show off and put on a facade when in public or with friends. (Se) However, in personal interaction, he was somewhat insecure and 'soft'.