Lecturer's finger pointing to blackboard for explanation
Palabras clave
lecture,
lecturer,
blackboard,
handwriting,
presentation,
training,
school,
university,
student,
announcement,
research,
hand,
hand gesture,
business,
corporate,
security,
finance,
success,
rise,
challenge,
background,
stock,
finger,
pointing,
signs,
gesture,
woman,
arm,
hand,
showing,
point,
holding,
palm,
people,
finger,
concept,
symbol,
body,
person,
direction,
thumb,
open,
empty,
isolated,
communication
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