人目が気になる・恥ずかしい

self-conscious

I feel so self-conscious there.

他人が自分をどう見ているかを考える性向

A propensity to care too much about what others' think.

A propensity to be self-conscious.

propensity　/prə'pensəti/　n)

★ a natural desire or need that makes you tend to behave in a particular way