I'm also a working mum. My bb don't 痴 me before & I was once very very upset. But I keep take bath for him everyday, take him to playgroup twice or three times per month. Also, I often touch & kiss his head when I hug him, when I played with him etc. My Auntie said that bb loves adult touch their head softly & I found that is true. This keep them a warm feeling:) When I put bb to sleep, I give him 3 goodnight kisses & bb will smile to me sweetly when I finish. Now bb is 1 yr old and what I've done do paid off. So add oil, bb will definitely 痴 you later.