The Basic Construct- The basic construct is a blob of energy. A Psi Ball for example. You can create a Psi Ball using your hands or just mind, producing any form of psi to be generated by your thoughts in any form in reality. For example a cube, a triangle, or a large Ball of energy coming outward and building around your body. Even stretching the psi ball continuously with your hands will make the ball change shape.
Because Psi is so complex you can do many things with it, just use your imagination and go for it. The only way you can stop the flow of Psi is consciously willing it to subside and then generate again. Yet Psi can be disrupted with negative thinking and doubting. You have to be in a positive and focused state to do any energy work. The lack of that will yield to no progress.
Developing a Strong Energetic Body Through Meditation- At first meditation helps for beginners to retain their energy better. It opens energy points on your body called chakras. When you are open and highly retain energy you don't need to meditate. Then it will be easier to do PK because you will be sensitive to energy and project it easier. Your energetic body is your locomotive that fuels your abilities. Improving it will be tough, you should do grounding once in a while to refresh the output and input of energy that enters your body and leaves. Constant regulation of meditating then projecting and grounding will improve you. Maintain a Schedule to practice and if anything don't skip sessions. I skip sessions a lot, and don't practice often but I'm already attuned to the PK I practice. I'm anchored to it and it's easy to do. Try to anchor a specific ability. If you practice it often it will be like playing a piano in tune. If you shift to another ability and you've never did it, there will be no result because your anchor is not strong enough to it. Try to stick with something you like to do the most. Example, PK on fire, wind, Physical Objects---and anchor yourself to one that you feel is most suited for you. You will start to see results once the anchor is connected to you and the specific ability.
Complex Constructs- Constructs can be used to do so much in PK, that your possibilities are endless. I've just had a practice session and decided to create a construct that will aide me in creating stronger gusts faster. Basically imagine a cyclone of wind or a tornado forming in front of you and don't lose that image. Keep thinking the constuct will spin like a cyclone and in seconds the wind should pick up fast. If you lose focus on the cyclone spinning near, it will fade and so will the wind---
----For example you are trying to make a Psi Ball. You lose focus of it and you stop adding energy to it, it will fade. Don't strain yourself when creating a construct. Just be in a quiet place where there are no people to distract you and concentrate on your goal. Your thoughts have to be attuned to the construct. The way you think will initiate how the construct feels and it's density and shape. This rule applies to all Eenergy Manipulation, your focus and thinking manifest that type of energy.
If you feel tired and see limited results, take a break and do it another day. You may just be drained or not concentrating well enough. To increase focus, try to meditate for a bit or try focal meditation.
Focal meditation is explained on this site so check it out and try to improve on your concentration.
Geisting- I used to have this a lot when I was in my teens, when my abilities just started to click in and awaken. Call it Psionic Puberty. :) If you have this that means you're at a stage where your abilities are awakening and sprouting like fish. You need to then gain control by meditating and learning to suppress psi in those situations. Your emotions and thoughts reflect how your psi manifests. Try to maintain positive emotions and avoid negativity. If you're anxious or angry your geisting will worsen. There has to be a sense of control to not disturb the peace.
In my situation, I ended up almost geisting so hard that the wind broke a branch and almost hit a person.
Your abilities can effect reality in negative ways. Be careful and maintain calmness when you're geisting and try to avoid situations that can make you geist more or break things. Know that you are capable of so many things. We are all able to do PK. It has it's limits but the limits are far and wide.