Knowing the basic parts and structure of a chair will be helpful with properly handling the wheelchair.
When properly handling a wheelchair, be sure to firmly grip the handles.
However, the first thing you can do to help them is to ask how you can help. Not only is this polite and considerate, but it shows you are available to them without overstepping.
Don’t grab someone’s wheelchair without their permission. It is basically an extension of that person and is well within their personal space.
After you asked and they have told you that they do need help here are something, here are a few tips and tricks to keep in mind.
Remember, chances that they know their chair better than you are high so don't be afraid to ask for help if you are folding or unfolding their chair.
Give them clear directions about distance, weather, and any other physical obstacles that may affect their travels.
Treat them like everyone else because they are still a person just like you. Treat them the same way you expect to be treated. They are still the same person you’ve always known.
Help prevent them from falling or tipping over by keeping the floor and ground clear of clutter. If they are coming over to your home, keep your floors clean and clear. If you are going out and you see an obstruction that they may not see, move it out of the way.