Small is used just to talk about size. It is the opposite of big or large .
Could I have a small brandy, please?
You're too small to be a policeman.
The adjective little is used to talk about [size + emotion]
If we call something little, we usually have some sort of feeling about it — we like it, or we dislike it, or it makes us laugh, or we think it is sweet, for example.
Poor little thing — come here and let me look after you.
'What's he like?' 'Oh, he's a funny little man '
What's that nasty little boy doing in our garden?
They've bought a pretty little house in the country.
Little is not usually used after a verb.