Sometimes orchids in active growth will develop drops of sap at nodes on spikes or stems, sometimes on the edges of new leaves or bracts, sometimes on or near flowers. They can be watery or syrupy, and sometimes enough to drip onto surfaces below. Some people call them happy sap as they usually indicate a healthy plant in active growth with an adequate water supply.
But you should also check for insects. Sometimes aphids or other sucking insects excrete similar sticky drops. Hope yours are happy sap and not an insect problem.
(also a chemist)