A pretty universal site for injection is the thigh. Sitting down, inject midthigh--alternate thighs with each injection. From what I have read, there is little difference in blood concentration from IM or SubQ. Spot injection, as Zyg mentioned, will give you localized lipolysis, and there is a question as to the overall blood concentration. In other words, inject into your love handles if that's the only effect you want. If you are looking for a bodywide effect, then try the thigh.