Well some interest might be required as too little and the relationship would end but yes, it is true that maybe one should be careful not to put too much in or the other might get conceited 

U gotta show interest. CuZ 4 me im UNCOMFORTABLE with flirtin with men..only had 1 tran lover by accident& cannot go back 2 pussy

Yes it is sadly true that we guys often love through our eyes first but after that hopefully we can get to know a great personality ...and it can work both ways ;)