He followed and asked "What would you like?" And had some overgrown musclebound man grab his shirt from behind. Baron Zemo calmly said "You have ten seconds to let go. Eight of them are gone."
The Baron spun around and simply touched a finger to the man's forehead and he passed out. A fun toy he liked using when he wanted someone down but not dead. It was a special sedative that was administered through contact between exposed skin and the fingertips of the Baron's gloved hand. Quite handy in situations where killing would attract unwanted attention. The man would live. Baron Zemo continued following Synthia, almost mesmerized by her sauntering and the movements of her hips. "Sorry you had to see that. I assure you he'll live and chalk it up as a terrible hangover. Now about that drink..." Baron Zemo was confident but not arrogant. He was normally smug and cocky but not where she was concerned.