well, if your animal is wild caught, it will take a whole lot more patients and time, but it is still possible. If it is wild caught, try the food with the long forceps, then post your had against the side of the cage and hold the food item over your posted arm to get the gecko to climb onto your arm. Do this little by little. I have a female Standings that i got when i was 12 yrs old, Im 27 now, that was wild caught. She was never tame, but wild caught animals have a tendency to become 'shy' really quickly.
But captive born day geckos are real easy to tame/train, regardless of species. I have 7 baby gold dusts(theyre all over a year old now) that were tame like leopard geckos. I havent worked with them in a couple weeks, but it would take less than a week to get them to the point were i can pick them up and they wont run away.
Standings and all P.mads are much much easier than the smaller species.