ok so walk into walmart normally, then put ur hood up and walk slow and very very quietly. go up to some one (make sure they dont notice u and u dont know them) and whisper very very quietly, so quiet that they can only hear u, " do u trust me?"
make sure that ur hood is covering ur eyes and then after u say it turn around walk away, pull ur hood down and smmile at the nearest person. do this mutipule times. and if u do it right no one will know it was u