I know every manager that spends money on a conference is hoping to get maximum time with investors, but please, slow your zombie roll. Don't mob investors, and try to keep your interactions to a bare minimum to keep the flow going. You're not going to sell anyone on your fund over a granola bar in a hotel hallway. Keep it simple. Your name. "I'd like to introduce you to my very interesting fund when you have a moment - can I get your card?" Move On. And if an investor is obviously trying to get somewhere (to the coffee, to the can, to a meeting) give them a little breathing room. They'll actually think better of you for it.