Summarize the following:
Japanese train cars don't allow for a lot of space, especially during rush hour. If you smell bad, people will notice (even if they don't speak up about it). Put some deodorant on before you leave, and consider taking some with you if you will be out most of the day and know you'll sweat a lot. Japanese trains run on a set schedule and timeliness is very important in Japan. Holding the doors open will delay the train and can cause others to miss their connections (and you run the risk of crushing your hand). During Tokyo rush hours, there are enough trains available that anyone who misses one train can catch another one within a few minutes, so there's no need to hold the door for someone. If someone gets trapped in the doors and is in danger, there is often an emergency button you can press, but do not use this unnecessarily. Someone's backpack getting caught in the doors as they board doesn't warrant hitting this button, for example (platform conductors will help push them in if the person can't pull the bag inside). If you're hanging on to one of the overhead handles while you ride the train, face yourself towards the seats and windows closest to you. Not doing so means that your behind will be in someone else's face. Sprawling out across the seats or extending your legs too far out will inconvenience other passengers - you're taking up space that someone else could use. Try to limit the amount of space you occupy, especially if the train is crowded. (You can normally stretch for a moment without issue if the train is fairly empty, however.) During rush hours and other crowded periods, there's very little space and having a bag or purse take up space inconveniences other passengers. If there's space, place your bag on the racks above the seats, or if it's a backpack, flip it so that the bag is in front of you and not behind you. (If you can't reach the overhead racks, ask for help or hold your bag in front of you.)  In some cases, it may be acceptable to set your bag on the floor as long as it's set between your legs and isn't taking up too much space, but do not do this if the train is too full - someone may trip or step on your bag. If you're sitting down, keep your bag on your lap rather than setting it next to you. Try to get suitcases onto the overhead rack if at all possible, since these are much more bulky than backpacks or purses. Talking on the phone while on the train is not polite. If you receive a call, either call back later when you're off the train, or answer to quickly and quietly let the person know that you're on the train and will call them back. Do not make calls on the train. (However, talking on your phone at the train station is fine - albeit difficult due to the noise!)  Many trains will have signs advising you to set your cell phone to "Manner Mode" (マナーモード), which essentially means silencing it, or even turning it off (the latter of which is more common if you're near the priority seats). Texting is acceptable as long as your phone is silenced, so as not to bother other passengers with the noise. Listening to music is also okay if other passengers cannot hear your music through your headphones. Japanese people tend to avoid eye contact, and you may make people uncomfortable if you stare at them. Look somewhere other than a person. However, if you don't look Asian, don't be surprised if you get a few curious looks (or even stares) yourself, especially from children! If you're traveling with other people or need to ask someone a question, keep your voice down and don't shout or laugh loudly. If you're noisy, you'll disturb other passengers on the train. It's considered out-of-place (and sometimes rude) to eat on the train, and you may drop some food, spill your drink, or otherwise make a mess - something that's very frowned on in Japan. If you must eat or drink something, make sure it isn't extremely messy and doesn't have a strong smell, keep your trash with you until you find a trash can, and clean up after yourself. Eating or drinking something is acceptable on the shinkansen. In general, Japanese people will understand if you don't pick up every nuance of train etiquette, but it's still a good idea to try to follow the example of the crowd. You might do things such as slide over to the end of the bench when it's empty so you're not sitting in the middle of it, or get out your headphones before boarding the train so that you're not digging for them while standing in the crowd. There's almost always a reason for why something or other is done on the train, after all.

summary: Use deodorant before going on the train. Do not attempt to hold the doors open. Face the seats nearest to you if you're standing. Try not to take up too much space. Keep any bags in front of you or on the overhead rack. Do not talk on your cell phone. Avoid staring at others. Be quiet when conversing with other people. Try not to eat or drink on the train. Do as you see others do.


Summarize the following:
The heat will help solidify the foam. Do not microwave the jar with the lid on, or you may ruin your microwave. Add a sprinkle of some cinnamon or cocoa powder on top of the foam. For something sweeter and fancier, add a drizzle of caramel or chocolate syrup instead.
summary: Open the jar, and microwave it for 30 seconds. Add some garnish, if desired, and serve.