R2-D2 (or Artoo-Detoo, spelled out phonetically) is an astromech droid, a type of robot that usually served as a mechanic and backup computer for small spaceships. in the Star Wars films. Astromechs cannot speak; they communicate with electronic beeps through an interpreter droid or computer. The fact that R2-D2 cannot directly express himself may have helped him fly under the radar and avoid frequent memory wipes, which in turn allowed him to develop a distinct, eccentric personality.

I hope you can understand R2 bleeps Because C3P0 is not there to help you translate.

May the Force be With You