Donut is very friendly. She's been with me for more than 4 years now, since I got her when she was 6 months old and looks like a munchkin (hence, the name).
Ladies, gentlemen and Chelonians, may I introduce to you my dearest little ones.
My eldest, Donut. She's 5 years old and she has an SCL of 8.9 centimetres.
Regarding your precious one's current diet, lettuce is a plant very rich in oxalates. Oxalates are the most common cause of kidney stone formation, of course, other than dehydration. I suggest you immediately remove this plant from your choices. Grasses would be a whole lot better.
Good luck.
Hey, Leno and tortie! I, too, have experienced this with my Stars. They do trust their sense of smell a lot that when they smell something they don't like with the food, they won't bother taking a bite of it. They won't even bother going near it.
As to my experience, they don't like the smell...
With what you have got in the picture, I agree with Bducks16. The anal scutes may be a little confusing since they're not going the same direction. Yet, the tail says it's a male.