Difficult to deffine. Normally if I feel like I am the one making all the effort. If you are always at mine, if you never call me, never email me that sort of thing, cancel plans for a better offer. These are everyday friends if you like. People that I know I know now but doubt I will in five, ten years time. Some cross the boundry into "when the chips are down" friends but not. That catergory actually get cut more slack than the others because they have proven their worth.
Kerist I sound mercenary.