Get On The Floor
When my kids ask me to play with them there's a certain level of investment that needs to be made. I can sit on the couch and participate from a distance, or I can get on the floor with them and be a part of the action. The latter is what children truly desire.
Getting down on the floor is uncomfortable, will inevitably be more time consuming, and may lead to getting stabbed with a Lego brick; but it's worth infinitely more. When you offer to help someone, you have a similar choice.
You can help from a distance, shouting trivial instructions across email, or you can get on the person's level, on the floor, and invest some time and energy. Truly helping someone else takes effort, and it can be inconvenient, but it builds character and humility.