self-consciously
US /ˌselfˈkɑːn.ʃəs.li/
UK /ˌselfˈkɑːn.ʃəs.li/

1.
自意識過剰に, 恥ずかしそうに, きまり悪そうに
in a way that shows one is aware of oneself as an object of observation by others, and therefore feels shy, embarrassed, or awkward
:
•
She smiled self-consciously, adjusting her hair.
彼女は髪を直しながら、自意識過剰に微笑んだ。
•
He cleared his throat self-consciously before speaking.
彼は話す前に自意識過剰に咳払いをした。