1. Five common networking mistakes are: not bringing business cards, only networking at formal events, keeping score of favors done, not talking to strangers, and not valuing yourself.
2. Specific tips to avoid these mistakes include always having business cards available, seeing networking as a 24/7 skill not just something done at events, giving help without expectations of return favors, moving out of your comfort zone to talk to new people, and preparing questions to contribute confidently despite less experience.
3. Master networkers view networking as a life skill, treat all contacts with respect, and understand that helping others can indirectly help you through the growth of your overall network.