o·gle 
(ōgəl, ôgəl)
(ōgəl, ôgəl)v. o·gled, o·gling, o·gles
v.tr.
To look or stare at, especially in a desirous manner.
v.intr.
To look or stare, especially desirously.
n.
A sustained look or stare, especially a desirous one.
[Perhaps from Low German oghelen, oegeln, frequentative of oegen, to eye, from oghe, oge, eye; see okw- in the Appendix of Indo-European roots.]
ogler n.