How to tell sex of Red Eye Tree frog. I just have one

[dendromad]

Here are some pics of the feet from this morning. The more I look at him, he is looking more like a male. He has been eating a lot of crickets and has a full belly right now. But he is still has a pretty small waist. let me know what you think

Thanks again

Sorry my bad, I didn't specify. It has to be the top of the feet/thumb, a little tricker to photograph!