gimmick vs shtick

gimmick

• A clever ploy or strategy. 

• A trick or device used to attain some end. 

• A night out with one's friends. 

• A gimmick capacitor. 

• To rig or set up with a trick or device. 

shtick

• A gimmick. 

• A generally humorous routine. 

• A characteristic trait or theme, especially in the way people or media present themselves.