Depends on the person and the type of love. Generally I'm quite open with the people close to me. At times, TOO open XD In contrast to that, maintaining a more formal / typical stance towards the rest. Pretty much, I give what I receive. That has always been my kind of Mentality. Now if we're talking about romantic feelings, I'm pretty hard to crack and show anything regardless actually. It'll take a while before I confess such love for someone (which has served both for the better and worse throughout my Life). And the amount depending on how comfortable both of us would be in our relationship again !!!!
