First off, if at all possible do not attempt to handle your nocturnal gecko during the day... How cranky are you when someone moves your bed at midnight? It just takes some common sense.
For some of our geckos, especially the babies, we don't even attempt to put them somewhere else, they seem to like to "help" use move the paper towels and inspect our work. We just clean one side at a time. This way when we actually work on handling them, they don't associate it anything like feeding or cleaning.
As for some people suggesting to tap the tails, I would not do that. Sometimes you can "drive" a gecko forward by very gently touching a fingertip to a back leg, but I would never touch a tail, especially a little guy's one.
What has worked for us is to take extra time... we put a hand in front of the gecko and get them used to it first. We never force a gecko to come out. What that has resulted is several leos that climb willingly onto our hands without prodding and even a few that "beg" to be held. We have the tamest geckos around.
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0.1 Albino Leo Gecko
0.1 Crested Gecko
1.0 Dear Boyfriend
Departed: Harvey and Spock