"(U◕ᴥ◕)(◕‿◕o)" is a combination of two emotes, one representing a cute bear face and the other a happy face. It can convey a range of emotions such as happiness, excitement, or affection. "Doggy of mine" emote is not a commonly recognized or widely used emote. It may refer to a specific custom emote created by an individual or community, but its meaning would depend on the context in which it is used.