Muaf nahi, me.n thujhe saaf kar duu.ngaa!I recently "Lucky Prasad"-ed myself. That is something you cannot really mask, unless if it was originally like the ones sported by Pradeep Kumar or S.S.Rajendran in their heydays.
From a human nature observation point of view it is interesting to note reactions (in this case, it is involuntary). The outspoken ones and the well-acquainted will express their feelings immediately. Whereas most of the rest will notice it but will try very hard to behave as if it never existed in the past. A very small minority will notice something has changed, but wouldn't be able to figure it out.