1. One or more computer storage media storing computer-useable instructions that, when used by one or more computing devices, cause the one or more computing devices to perform operations comprising: receiving user feedback for each of one or more social posts presented to a user, each social post presented in association with a sentiment assigned to the social post, the user feedback for each social post regarding the sentiment assigned to the social post; generating sentiment tuning data from the user feedback; generating a new set of sentiment indicators from user provided sentiment indicators of the sentiment tuning data; applying the new set of sentiment indicators, generated from the sentiment tuning data, to new social posts to determine sentiments for the new social posts, wherein the applying comprises: identifying designated expressive symbols of the new set of sentiment indicators in the new social posts, the new set of sentiment indicators comprising assignments between the designated expressive symbols and designated sentiments; and determining assignments of the sentiments to the new social posts based on the assignments between the designated expressive symbols and the designated sentiments; and presenting the new social posts in association with the sentiments assigned to the new social posts.