People are much more apt to help and follow someone they like and respect. Want to know how well liked you are—that is, how much support you can count on when you need it? Ask.
Start by creating a list of all the subordinates, equals and supervisors with whom you interact regularly. Be sure you meet with each person on your list at least twice in six months. Each time, ask for feedback on your performance in general. Most importantly, take constructive criticism and apply it. Otherwise your efforts will seem transparent.
Nobody likes a combative, critical coworker. Don’t be one. Approach requests and proposals from colleagues with sensitivity and openness; look for a way to say “Yes, you have my support”—if not to everything, then to some part of what is being put before you. Try to remove “Yes, but…” from your vocabulary. It’s shorthand for “No” and it’s a real downer.