1. Cuddle.Babies love cuddling, up until at least 4 months you can happily make yourself a cuppa and deposit yourself on the sofa, baby in arms. Baby will lie there, gazing at you or snoozing as happy as a clam. Are clams actually happy? Who knows? (Does anyone care even? Poor clams). Your baby however, will be happy, small babies love the warmth of your body, your scent, your heartbeat. It is emotionally, developmentally and physiologically good for them. So enjoy those baby cuddles.
2. NurseWhatever your chosen feeding method. I am using the Sears definition here, where nursing is feeding in a loving and nurturing manner.
Breastfed babies love to suckle, they need to; as well as getting nutrition they are comforted and get the skin to skin contact that makes them feel really close to you. There is a myth that babies need to feed less often than they do (every couple of hours is really not unusual) and that suckling for comfort is a bad thing - it's not, it is normal and beneficial.
If you are bottlefeeding your baby, snuggle down with them, get them skin to skin if you can, make eye contact, talk to them softly, make feeding an emotional exchange.