how do I get new leaves on my bonsai? plant

This plant needs to be outside. It is a Chinese Elm and is hardy and will not do well inside. Put it in a semi shady spot, and keep watered. Also some fertiliser will be beneficial. It needs sunshine, so at least 4 hours a day. The long growths can be pruned back to about two or three pairs of leaves. 

I am not as sure about species. The photo is just too bad.

But the leggy growth is calked elongation and is a result of too little light.