Do you know that there are certain zodiac signs, the individuals of which will just go weak in the knees when it comes to falling in love instantly? These individuals are believed to lose their hearts the minute they feel attracted. Cancer: These people are very open about their feelings, very sympathetic and have an understanding nature. It is very easy for people to fall in love with them. Taurus: These people love to be in love and they enjoy the feeling. They value loyalty and commitment and people simply love this about them. Sagittarius: They are always honest and straightforward which people respect. People seem to enjoy spending time with them and it would not take much time for them to fall in love with others.