Thou shall not be walking at 3am circling the same block in a high crime area.
Thou shall not be known for gun and drug possession when checked for warrents.
Thou shall not place $70 in hands as a gift to the poilice officer when asked if a search is ok.
or
Thou shall respond to the police officer when asked if a search is acceptable (Instead of staying silent and placing $70 in hands)
That is what Swift vs. State of MD taught me (Appeal linked below with information above).
http://caselaw.lp.findlaw.com/data2/marylandstatecases/coa/2006/98a05.pdf
"...a reasonable person would not have felt free to leave the presence of the police officer and continue on his way home. Because a reasonable person would have believed that he was not free to leave under the circumstances presented herein, we hold that petitioner was seized within the meaning of the Fourth Amendment."