It can be purely sexual, or it can be a deeper feeling that someone understands you.
Either way, it leads to something very real happening in your brain, Mc Nulty says: a gradual cascade of neurotransmitters that are released as a person falls in love.
Make sure your phone is switched off or on silent and try not to look at it when you are with your date.
If food is needed try having a brunch or an afternoon tea, as that is less formal and you can have fun trying something different, even a hot drink and sharing a cake is very romantic!
You need to be yourself and not over think things too much about what you are doing right or wrong.