Law School Discussion

Can visiting a Law School on their official visit day help admissions?

I get post cards to come and visit on a day where I have not received a decision yet.  Can meeting people on this day affect their decision by the interest shown in taking the visit? And conversely can not visiting show lack of interest? There is one visit scheduled for Feb. and I already got a letter that said they will make a decision on me in April (so that means I was deferred correct?).  Would it help at all if I took the visit?