airs and graces
US /ˈɛrz ənd ˈɡreɪsɪz/
UK /ˈɛrz ənd ˈɡreɪsɪz/

1.
aires de grandeza, afectación, presunción
an affected manner intended to impress others; snobbish behavior
:
•
She puts on a lot of airs and graces when she's around important people.
Ella se da muchos aires de grandeza cuando está cerca de gente importante.
•
Despite her wealth, she has no airs and graces.
A pesar de su riqueza, no tiene aires de grandeza.