What subject pronoun would you use when talking to your friends?

YoItúyou (informal)ÉlHeEllaSheUsted (Ud.)You (formal)NosotrosWe (masculine)NosotrasWe (feminine)EllosThey (masculine)EllasThey (feminine)Ustedes (Uds.)All of you. You all (formal)Vosotros (masculine)
Vosotras (feminine)You all (in Spain and informal)ÉlWhat pronoun replaces Ricky?nosotrasWhat pronoun replaces "Mis amigas y yo (all girls)EllosWhat pronoun replaces Victor y Ricardo?EllaWhat pronoun replaces a girl name like Julieta?vosotrosWhat pronoun replaces Robert y tú (in Spain)EllasWhat pronoun replaces Rosa y Mónica?EllasYour two best friends, both female.EllosYour two big brothersEllosYour two neighbors, a boy and girlYoYourselfEllaYour sisterUsted (Ud.)Your fatherNosotrosYour uncle, your aunt, and yourselfUsted (ud.)What pronoun would you talk to your friend's father?VosotrasWhat pronoun would you talk to a group of several girls from Spain?TúWhat pronoun would you talk to your friend?UstedesWhat pronoun would you talk to two classmates?VosotrosWhat pronoun would you talk to a group of school children in Spain?UstedWhat pronoun would you talk to your teacher?EllosThey (mixed)VosotrasYou guys (females in Spain)Vosotros/VosotrasAll of you (Spain)Please allow access to your computer’s microphone to use Voice Recording.Having trouble? Click here for help.

Tu (You) ellas (hers/girls) ellos (his/boys) 

So are you supposed to find out what it means in english?

Agame in which two or four players strike a ball with rackets over a net stretched across a court. the usual form (originally called  lawn tennis  ) is played with a felt-covered hollow rubber ball on a grass, clay, or artificial surface.