Actualy i was quite dissapointed when i find out that people welcome my Drow in the Grove ...
They usualy only said one sentence to acnowledge that im a Drow, and then it goes back in regular conversation.

But i must agree with JandK ... goblins are really something entirely different. ^_^
If you play druid, as far as i know you have some dialogue options that other classes dont have ... and you calso get bonus to persuation for others druid, if you try to persuate them by some Druidic talk, like when you recite them Oakfather teaching and simmilar stuff.
If you play Tiefling, there certainly are some differences, but it more in Nuances than anything explicitly different.
(For example speaking with Silver without speak with animals is quite different for Tiefling and i laughet fist time i did that.

)