How Can I Break the Touch Barrier in Early Dating?

I often end up in situations where I am meet someone from a dating app and we go on multiple dates without kissing or any other physical contact besides maybe some hello and goodbye hugs. This can be an issue for me because without physical touch, the feelings that I develop tend to be more platonic than romantic. For me, an ideal first or second date would be permeated with small instances of physical touch, e.g. knees touching under the table, hand on my back when she goes through a door,. plucking a leaf off of her hair, and would end with some kissing. The question is basically, how can I get better at breaking the touch barrier in early stages of dating