Most Helpful Guy
Just say it. I hate it the most when girls just leave me hanging and leave me to try to figure it out myself. Basically, a rule of thumb is never be subtle. It's ambiguous. No one knows whether you're being friendly, temporarily sad or upset or actively hate their guts or just aren't interested. Like the stories of women who just let a guy walk up to them and start talking and talking and talking, and they just don't say a word, they just let the guy figure out that she's not interested after an hour, wasting both their time, when instead she could've just said "I'm not interested, sorry." Instead, they whine about how guys don't "get it". You would think after hours of wasted time, they'd finally say something.
In any case, just say what you mean. We're not the proverbial mind-readers. We can't tell what it means when you hold our gaze for 2.34 seconds, instead of 2 seconds. And yet some women think they're being super obvious. ugh. Sorry. Frustration. -.-