He appears as a shabby old man, but in fact he’s extremely clever and cunning. He knows all the languages of the world and is also fluent in the Cosmic Tongue (does that mean Esperanto?).
If you need to get a message to the Gods, LEGBA is the one to go for. But he’s not very reliable — he likes nothing better than to confuse. Not only that, but as he gets older, garbled messages and confusion have a tendency to creep in.