everytime I eat and my baby is sitting on my lap, she stairs at my spoon and at the food going into…

everytime I eat and my baby is sitting on my lap, she stairs at my spoon and at the food going into my mouth. she also pulls my plate close to her and one time she grabbed rice and almost put it in her mouth but I stopped her. does this mean she is ready for "supported sitter" gerber food? she will be 4 months next week...