LIBATIONS for LEGBA
Papa Legba is a spirit loa. He is also known by several other names,ESHU being one of those names. (JAHESHUA MISCHAJAH)
Altars to Legba are usually erected indoors, near the entrance of the home. Appropriate offerings to Legba include candy, smoked foods, palm oil, black goats, green bananas, toys, rice, cassava, molasses, candles, rum, roosters, chickens, cigars, cigar smoke, and a rat powder called jutia. Libations to him are poured at the doorway. Offerings are made on Mondays and on the third of every month. Legba is always the first god honored in every ritual, because he opens the way to the other loas or orishas.
http://zer0dmx.tripod.com/gods/legba.html
-------
OTWO...
It looks like you may have offered the incorrect libation and possibly on the wrong day. You will need to do it correctly if you expect an appearance.