Yes, crossing your legs does impact your blood pressure reading
CROSSING YOUR LEGS CAN INCREASE YOUR BLOOD PRESSURE?!!!
Dangers of Crossing Legs - Dr Mandell
See What Happens When You Cross Your Legs Too Much
Lowering Blood Pressure in 5 Minutes
Dizziness, balance problems, and blood pressure swings can be from upper cervical instability
Video: This is when low blood pressure is cause for concern
Hypotension. How to quickly raise blood pressure at home. First aid
Don't Let Your Legs Get Weak: 6 Essential Foods to Help Maintain Strength as You Age.
Can the blood pressure be different in different limbs?
Help Circulation in Legs When Sitting! Dr. Mandell
How to Improve The Blood Circulation in Your Legs in Just 3 minutes!
Hypotension. How to raise low blood pressure immediately and naturally
Leg Pain Could Signal Peripheral Artery Disease - SLUCare Health Watch
Is a Blood Clot Causing the Pain in Your Leg (DVT)? How to Tell & Prevent
2-Minute Neuroscience: Restless Legs Syndrome
Do You Really Have High Blood Pressure? 
HOW you SIT can increase your blood pressure !!!
Neurologically Why You're Getting Numbness,Tingling, or Burning in Arms or Legs - Dr Mandell
10 Common Triggers That Will RAISE Your Blood Pressure!