Hobbies are rarely a major screening factor by themselves. Their value is mostly additive: they can make you more memorable, show commitment outside work, or create a natural point of connection with an interviewer.

You do not need an exotic interest. Depth is more useful than novelty. Playing in a local football league for years, producing music consistently, or volunteering in one organization can say more than a random list of impressive-sounding activities.

Keep the application centered on evidence of achievement and leadership. Then use interests to add personality. The consulting resume guide shows where an interests section normally fits.

Normal hobbies are fine. Please don't invent 'competitive underwater chess' because you think Bain needs personality lol.