Scientist pondering his experiment on the workbench
Portrait of Nerd Thinking
Ethnic man thinking
Ethnic man holding his hands to his chest
Thinking contemplative student
Man sitting at desk thinking pondering
Student pondering thinking with open text book
Pondering
Pondering Businessman
pondering expression
Boy pondering
Pondering Life
Pondering young business man
Man or student pondering or thinking intently
Man pondering or contemplating a decision
Pretty caucasian girl pondering or thinking
Woman pondering with clock
Young woman in park
Pondering arab businessman
Pondering man
Boy thinking or pondering
Pretty caucasian girl pondering or thinking
Pondering Middle Aged Businessman
Young Indian businessman indicating size
Thinking doctor