I use the same technique as John most of the time. However, I do have a homemade "tool" on my tying desk that works wonderfully (if I'm home and tying at my desk!). It's a popsicle stick, with a small piece of the loop faced Velcro glued on it. Pushed down on the beads it will pick up one or more of the beads for easy "hooking". Fingers are probably handier, but I tend to bleed quite easily () so the stick is there as needed. PS ... it also works well for "brushing out" dubbing on a fly body!
Trouts don't live in ugly places.
A friend is not who knows you the longest, but the one who came and never left your side.
Don't look back, we ain't goin' that way.