I'm looking for manga where the protagonist has never been in love before and is awkward at it. They should want to make their partner happy and do things towards that but they don't go over well or are misunderstood.

Like, this one manga had a character who was physically adult like but had an innocent mind etc, that person wanted to make the girl he liked happy by giving her a feather. Before he could give it to her a baby/kid wanted it and they fought over it. The girl took the baby's side and he ended up making her mad instead of smiling.

Kind of like when they try to make the one they like happy they fail, but when they stop trying they end up succeeding.

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Feed your head.

cat street-shes very innocent and inexperienced,the guy she actually ends up with is awkward and not good at expressing his feelings too

The manga from your example is Issho ni Neyou yo, right?
You may also like Sarashi Asobi.

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