A grandstander is someone who seeks attention and tries to impress others, particularly by showing off their skills or accomplishments. However, there are several other synonyms for grandstander that convey a similar idea, including show-off, exhibitionist, braggart, blowhard, and boaster. Another word that can be used to describe a grandstander is a self-promoter, as they often try to promote themselves above others. While grandstanding can be an effective way to draw attention to oneself, it can also be a turn-off for many people if it is done too frequently or aggressively. In summary, there are several ways to describe a grandstander, each one communicating the same basic idea of someone who likes to show off or draw attention to themselves.