When you compliment someone say "you" and be specific. When you share success say "we" and highlight others.
Overcoming The Ego
Even though it's common sense and "respectful diplomatic behavior" which even a child understands, so many of us make this frequently repeated mistake. Rather childishly we tend to reduce praise of others and too easily take credit for more than we actually contributed.
When we sincerely and consistently praise others, our friends will grow in numbers and feel inclined to return the favor. If we withhold praise and constantly promote ourselves, we end up poor indeed!