Quote Originally Posted by moiraine57
I have noticed what I believe to be an online tell: it doesn't happen very often, but I would say the great majority (75%) of the time when someone waits a long time and then raises, they have you beat. Absent any other information, I would have taken that as a warning.

I dunno why they do it. They're either purposely delaying, trying to signify weakness, or they're playing around with the slider bar, experimenting with different bet sizes, trying to find a good amount they think you'll call.
You're probably right. I've done it myself, for both of the reasons you specified. I'll keep an eye out for that.