Ok, I'll postpone my brew day to tomorrow, maybe later. I just really expected to see some activity by now.
I don't have an airlock on the bottle. I simply have the cap just sitting on top of it. When I shake the bottle, I do it by squeezing the bottle a bit and then tighten the cap. A couple good shakes and then loosen the cap immediately so pressure doesn't build up and stress the yeast. However, no point in it the last 24hrs. There has been no pressure to release. Not even a little. I have always done this method. Once the yeasts do start producing CO2 I switch to simply stirring the bottle with a rotational motion.
This is the first time I haven't had any activity in 24hrs when using White Labs yeast.