Use clan culture
You want to mention things that are part of the clan culture. Individuals represent groups showing products or behaviors that make them part of that group. Also, if you are the DM, you can define the culture of a clan in a given area. Here is a list of things you can include:
Witch Social awareness, resistance to conservative ideas, political literature, pop culture, che shirts, Palestinian scarves, proudly labeled "SJW". Brujah are often represented as idealists.
Gangster Animals, outdoor activities, hunting, domination, action before thinking, territoriality, mountain equipment, cabin in the forest. Gangs are often represented as insular.
Malkavian Theories of conspiracy, psychology, pseudoscience, psychotropic drugs, frequent incidents with authority, meticulous planning, oddities, shouts. Malkavian is often represented as unpredictable.
Nosferatu Computers, secrets, pet rats, shady businesses, horror movies, social exclusion, black humor, geek. Nosferatu are often represented as pragmatic.
Bullfighter. Social drugs, clubs, social networks, celebrities, large social gatherings, musical instruments, large expenses, entourage. Toreador is often depicted as a hedonist.
Tremere Magic, spells, secrets, cults, pentagrams, new era, wicca, gothic jewels, dimly lit places, Harry Potter books. Tremere are often represented as mysterious.
Ventrue Business, skyscrapers, office work, suits, public personality, attachment to high-profile brands, lawyers. Ventrue are often represented as self-confident.