When can I expect my 5 week old baby to smile at us? When can I expect my 5 week old baby to smile at us? I am sure he does smile but my mother dismisses it as wind. At times I feel he does look at me knowing who I am but no smile shows so maybe he is not really sure who we are yet. You are probably right in thinking that he does already look at you with recognition in his eyes, as many babies do this before they learn how to control their facial muscles to form a smile. The kind of smiles your mother dismisses…