Accordingto a studydonebyDavidHutton, yourreal-liferelationshipscanbehinderedbecausepeoplewon't relatetoyouaswellifyou'reconstantlypostingphotosofyourself.
Toavoidthis, trytomaintain a clearseparationbetweenhowyouwriteyourformalemailsandyourcasualemails, whilekeepinginmindthataddingsmilingemojiswillnothaveanyrealimpactonhowwarmyouseem.