Hm. Depending on where you preform, if you are just have people lean down and look at the card, then what you do is you get lower then there point. Street magicians often do that they feel safer that way because no one in there right mind will put there face to the ground and try to look at the card. If they do laugh excitingly, and slap your hands down on your knee... pushing the card into the deck then ask, " What are you doing!? " they will stop. Then if they say, " Trying to see my card. " or which ever " trying to see the card you put in the deck"
Oh! well here, " reveal it on top of the deck. "
Or do the long distant spinner. " I am sure I put your card back into the deck but maybe if I can get the right gust... THERE! " then fire the card off catch it and give it to them