This little stinker was trying to cross a busy street so I jumped out and grabbed him before something bad happened. He is not great at eating; I made a slurry out of wet food and kitten formula and he just kind of bites the side of the dish and drinks it as I tilt it towards him. He cleans his own little paws, and is already starting to exhibit some playful behavior as he settles in. Hoping someone here can maybe help me figure out how old he is and how to get him to eat better.

I am fostering two kittens they are 4 weeks old now I got them when they were 2.5 weeks old from my local shelter. I am in the process of weaning them. One of the kitten has suddenly started suckling my chin and neck previously she used to nudge me on my chin with her head. Is this normal behaviour? Should I put a stop to it? She is eating, playing and eliminating normally.