Flirting

Not staring. But repeated glances or a lingering look.

It's OK to flirt with your friends. And you both know that it isn't going anywhere. Or do you?

This makes it less threatening

Don't ask someone for their number. Politely offer them yours. If you enjoyed someone's company (maybe at a group function), go ahead and ask them out.

Being really bad at flirting can work to your advantage with some.

If by chance, you notice someone flirting with you, acknowledge it and then ignore them.

We can all recognize the people who are constantly the target of flirts. They have built up an immunity. Try and choose a less obvious person for your attention.

If there is someone you're interested in and you see them at the same place more than once. Most likely you'll see them there again. So if at first you don't succeed....... Also don't necessarily quit after the first show of disinterest. They may know Rule 6.

For example, perhaps I had gotten up enough courage to offer to buy a drink for someone I've been flirting with. If they decline, you could reply with "perhaps you would prefer dinner/dessert/a dance? (pick whatever seems appropriate) But if you're too busy tonight perhaps we could get a bite tomorrow?"

In this way, you've acknowledged what they said, given them a second chance to say yes, and told them that you respect their feelings and would still like to get together.

So have fun with it. Don't let it be a stressor.