OK, so if stating it outright causes the other person to feel like they're put on the spot because they are now aware that you like them, why would implying it not have this effect? Are people too stupid to realise what you're implying until a few moments later?
EDIT: OK, perhaps "stupid" was the wrong word. However, this idea that stating it outright puts pressure on the other person to respond ... well, what's wrong with responding with an "I'll get back to you on that" or something similar? If they don't give you the time to think about it, give yourself that time.