Ignore leverage and focus on your risk percent.
If you have a $1000 account and want to risk 1%, that's $10.
If you trade full lots, your stoploss would need to be 1 pip. The spread would be more, so you have to reduce trade size.
If minilots (and xxxUSD pairs - gets complicated for other pairs), then a full minilot would give you 10 pips. That's a bit tight unless you are scalping.
For microlots, each micro of xxxUSD pairs is 10 cents. You could trade 1 micro with a 100 pip stoploss, or 5 micros with a 20 pip stoploss.
One note - some brokers will try to spike you out of your stoploss. Some people say that you should trade without a pre-entered SL. Personally, I think that's a bad idea. Better to have a mental stop (and the will to ALWAYS follow it) for your risk percentage, but a hard stop far enough away to avoid stop hunting, but close enough to save your account if you lose connectivity at a bad time. In the example above where you trade 5 micros with a 20 pip stop, you could have a mental stop at 20, but keep a hard stop at 100. Then, if your dog chews through your DSL connection at the wrong moment, a worst case scenario is losing 5% of your account instead of a margin call.