BashfulClam, a baby doesn’t need kisses I couldn't agree more.
Kissing babies is 100% to do with adults desire to kiss the baby, and nothing to do with what a baby wants or needs. Yet here posters are suggesting it is 'sad' for a baby not to be kissed. It may be sad for the would-be kisser but the baby definitely doesn't need your grown-up kisses.
Frequent, warm and responsive interaction with an engaged and loving caregiver, close physical proximity with skin to skin contact, smiles and laughter, singing, talking, exploring visual, textural and audible stimuli together, are all really good ways of building and reinforcing positive attachment.
I did some kind of attachment parenting with my kids; co-slept, baby-wearing, natural term breastfeeding, lots of physical contact etc. However, I didn't kiss my babies on the lips or get in their faces much. Close, yes. Actually my face in their face? Not unless they initiated it, as a rule, in which case I was responsive.
And don't get me started on tickling.