A person who’s interested in seeing an individual first before he/she develops an attraction for them is called?
A person who prefers to see or get to know someone first before developing an attraction might be referred to as a "sapiosexual," focusing on the intellectual connection, or more generally as someone who values emotional or personal connection before physical attraction. However, if you are looking for a specific term that describes someone who needs to see an individual first to develop attraction, there isn't a widely recognized label for that. You might describe them as someone who needs "emotional or personal investment" before feeling attracted.