When you are ready to rinse out the oil, hop in the shower and apply a dime-size or quarter-size amount of shampoo from your roots to your ends. The shampoo helps remove excess oil from your hair. Rinse out the shampoo, and apply conditioner as normal. Then, rinse all of the product out of your hair thoroughly. To moisturize your hair even more, you can leave the conditioner on for 3 to 5 minutes while in the shower. For fine hair, you may want to skip conditioning after shampooing out the mask.

Summary: Cleanse your hair with shampoo and conditioner.

In quantum mechanics, the quantum of action is the Planck constant, usually denoted as h. Likewise, for interacting subatomic particles, the quantum of angular momentum is the reduced Planck constant (the Planck constant divided by 2) denoted by and called "h-bar". The value of the Planck constant is extremely small, its units are those of angular momentum, and the notion of action is the more general mathematical concept. As the name quantum mechanics implies, certain physical quantities such as angular momentum can change only in discrete amounts, and not in a continuous (cf. analog) way. For example, the angular momentum of an electron bound to an atom or molecule is quantized and can only have values that are multiples of the reduced Planck constant. This quantization gives rise to electron orbitals of a series of integer primary quantum number. In contrast, the angular momentum of a nearby unbound electron is not quantized. The Planck constant also plays a role in the quantum theory of light, where the quantum of light is the photon and where matter and energy interact via the atomic electron transition or "quantum leap" of the bound electron. The units of the Planck constant can also be viewed as energy times time. For example, in the subject area of particle physics, the notion of virtual particles are messy particles that spontaneously appear out of the vacuum for a tiny fraction of a section and play a role in a particle interaction. The limit to the lifetime of these virtual particles is the energy (mass) of the particle times that lifetime. Quantum mechanics is a large subject area but every part of its mathematics involves the Planck constant. Massy particles go through a classical-to-quantum transition. Even though the free electron displays some quantum properties (such as spin), as the unbound electron approaches the atom and slows down (perhaps by emitting photons), it undergoes a transition from classical to quantum behavior as its energy goes below the ionization energy. The electron is then bound to the atom and its angular momentum with respect to the atomic nucleus is restricted to quantized values of the orbitals it can occupy. The transition is sudden. One might compare this transition with that of a mechanical system that changes from displaying unstable to stable behavior or from displaying simple to chaotic behavior, or even a rocket ship slowing and going below escape velocity and entering orbit around some star or other celestial object. In contrast photons (which are massless) do not go through such a transition: photons just travel through space unchanged until they interact with other particles and then disappear. As you look into the night sky, the photons from some star traveled through light years of space unchanged then interacted with an electron in a molecule of your retina, transferred its energy and then otherwise disappeared.

Summary: Start with learning about the physical significance of the Planck constant. Learn about massy particles.

Of course, it may be hard to find out how he acts when you're not there, but try to observe him from afar. If you see him across the lunch room, see how he is acting with his friends. Is he talking a lot or is he quiet? If he's very talkative around other people, but quiet around you, there's a good chance that he feels nervous about saying the wrong thing in front of you. If he is a quiet person all the time, it may be hard to tell this way. Look for other ways to know if he likes you too. When you're around does he avoid looking directly at you? Is he sweating? Is he defensive if someone teases him? If he is not normally like this, but seems to be when you're around he may be worried about doing or saying the wrong thing in front of you, especially if he is shy. If a boy likes you, he's more likely to seem as though he is nervous or anxious when you are around. If he isn't really in to you, he will be more stand-offish. A shy guy is likely to be fidgeting with his hair or his clothes when you are around or he may cross his arms in front of his chest. Shy boys are more likely to feel nervous around their crush, so they may seem defensive, when in fact they are actually very interested. You may find that your shy boy often tries to be around you, but not really near to you. For example, he may find excuses to hang out with your group of friends, but he'll always try to sit as far away from you as possible. Don't take this as a sign that he doesn't like you. If you are friends on social media, think about how he treats you. Did he find you and friend you? Is he constantly liking everything you post? If so, there's a pretty good chance he is interested in you, but hasn't gotten up the courage to do anything about it. You can also try to hint to him that you're interested by friending him (if you're not already friends), and showing appreciation for his posts by liking them or making a comment. Don't overdo it though! You don't need to like every single thing he posts, rather just a few to show him that you are paying attention.
Summary: Observe how he acts when you're around and when you're not around. Think about whether or not he seems nervous around you. Read his body language. Think about his social media behavior.