sramiti se

1. (sramiti se + gen.) to be ashamed
   Sramim se onoga što sam juče rekao. — I'm ashamed of what I said yesterday.
   Treba da se sramiš! — You should be ashamed of yourself!
2. (sramiti se) to be shy; to feel embarrassed
   Ne sramite se, uzmite još kolača. — Don't be shy, have some more cake.
   Mali se srami da peva pred gostima. — The little one is too shy to sing in front of the guests.

Almost always used with se; the object of shame is in the genitive: sramim se tebe. In Serbia stideti se or the impersonal sram me je are more common in everyday speech; sramiti se is less frequent.