UBC, You want the head of the striker to "skip" across the slate. You need a rough surface to make this happen. You may have a scotch brite pad lying around. That is what I use to "condition" my calls. I always have a hunk with me. I use a circular motion, and only do about 1/2 the call (the part I'll use to make the call). I also use the pad on the striker as well. Sand paper works as well. Now, to make the call, I'm right handed. I lay the little finger of my R hand along the rim of the call, anchoring the hand like this thru the calling process. Your pressure on the striker is the key. I hold the striker like a pencil, but about 1/3 way up the shaft. To purr, apply light pressure to the striker while (either) pushing the striker away, or pulling it towards you. I also will drag the striker in a "J" motion to get a little different cadence. To me that is what it's all about, the cadence. I think you can have the sweetest sounding call, but if the cadence is wrong, it's just a sweet call. Clucks are just a quick push of the striker back towards you. Heavy pressure on the striker, and I just kind of "twitch" my pointer finger towards my body to make this happen. You can pull the striker towards you, but I like leaving my hand in one place, and just letting my fingers do the talking. Redundant to what others have said, but I hope this helps.