Sorcerers, specifically savant sorcerers are egotistical soloists. With that in mind, the following holds true.
1) Remember, when a sorcerer joins your lfm, everyone else in the party must immediately thank him/her for joining up.
2) Remember, melees are in the group to serve as mob distractions until the sorcerer can cast a max/empowered fireball. At which point, melees should proceed to the next room to serve as distractions in that next room.
3) Remember, thank the sorcerer once again when the quest is completed. (He/she does have a big ego and sorcerers do usually just solo.)
4) Remember, occasionally press the 'x' button and comment on the sorcerer's massive kill count total in comparison to other party members. (Things like, "You rock sorcerer dude!", "I'm rerolling to a sorcerer today!" and "When I grow up, I want to be just like you sorcerer." are all appreciated.)