Hi, Today I played with my good friends. We've played together for 20 years, but we all are not professional even not good ones. We just love playing bridge. In one of today's hands, my partner and I were defending a 3S. I got Q72 in my hearts. The dummy's heart was Jxxx. My partner played HA. My question is that, at this condition, should I use card number signal (3 cards, play 2 first), or use welcome signal (play 7 first)? At that hand, I played H2. Then my partner played HK and I followed H7. So he didn't play the third heart but switched to club. Finally the dealer discarded his last heart and made the 3S. We discussed this hand. I think that the problem was that I wasn't sure if I should welcome heart at the first time. If I can be sure that HAK was at my partner's hand, I should welcome him with H7-H2. What do you think? Does it have a general rule to identify when to use welcome signal and when to use card number signal?