1. Make eye contact. Throw small glances and catch the eye of the person you’re interested in. Hold their gaze briefly, then smile and look away.
2. Smile at the person. To be most effective, smile slowly (rather than grinning widely), and crinkle your eyes. That kind of smile is more genuine and appealing.
3. Talk to them. You don’t have to commit to a full conversation but at least say “hello” and acknowledge their existence!
4. Initiate a conversation with them (one step on from point 3). Think of easy ways to get a conversation going. In many ways the topic isn’t so significant. You just want to talk to them, and try and pique their interest. General guidelines are … ask a neutral question; try and find some areas of common interest; gauge their response before showing more interest; and keep things light and impersonal.