What can I do to increase my HDL cholesterol level?

Diet & exercise. Moderate exercise (about 30 minutes five times a week) reduces LDL cholesterol and raises HDL cholesterol. Smoking can lower HDL levels, so stop smoking if you do. Eat lots of fruits, vegetables, whole grains and lean sources of protein. Include monounsaturated fats in your diet- olive oil/canola oil. Moderate consumption of alcohol may also positively impact HDL levels. 1 glass of wine a day.
Lifestyle change 1st. You should consider aerobic exercises, resistance training involving leg muscles, weight loss, smoking cessation, low saturated/trans fat, low simple carb, high monounsaturated fat, high fiber diet, and moderate alcohol consumption. You may want to talk to your doctor about Niacin (niaspan) and Fenofibrate (tricor or trilipix). If your LDL is high, consider crestor, (rosuvastatin) which may boost HDL slightly.