These are good suggestions. I have a few more.
For charging an item, I suggest you use your right hand. The right hand pushes energy, the left takes it in. If you were trying to take energy out of an item you would use your left hand.
This is regardless of whether you are right or left handed. It's possible to do these things with the other hand, but its much harder. Energy naturally flows out of the right hand and into the left.
I also suggest focusing on pouring or pushing the feeling into the item. Different items will accept energy in different ways. If you find the item resisting, maybe you need to get a different item, or maybe the item needs to be prepared in some way. Put a symbol on the item, or consecrate it with some essential oil (be careful with these, follow the instructions because they're strong). Then it might accept the energy better.
Good luck, mail me if you have questions.