Dildos are the ultimate do-it-yourself sex toys. Unlike vibrators, dildos do not move on their own. Actually, it doesn't do anything you don't. But that's not to say they're toys restricted to human form.
Indeed, one of the wonders of dildos is that they come in a shape and size that humans don't have. You will feel satisfied when using these toys, but at the same time, here are some important points you need to keep in mind.

Since dildos will only do what you tell them to do, without any extra movement of their own, choosing the right dildo is key. Taking something that is too big, no matter how excited or invested you are, it won't work. Pick a shape (or even a color) to turn you off and you may find it difficult to use the toy. If you're not sure what size you need, consider using something else for penetration (fingers, penis, carefully washed vegetables, etc.). If you're using a dildo because you've never experienced penetration, it's recommended that you start with your own fingers (if possible), or a small toy.

Lubricant is required
You always need a personal lubricant in any sex toy to penetrate. Water-based lubricants are good for almost everyone. If using a silicone dildo, do not use silicone-based lubricants. Apply lubricant to the toy and the inside and outside of the body. Most sex toy lubes are thicker, so they won't slide off the toy immediately. If you use a dildo for anal penetration, you may need to refill with lube at some point.
Use with condoms
You should always use a condom on a dildo. Doing this will reduce your chances of having any allergic reaction to the dildo material. It also makes cleanup a lot easier. Condoms are also necessary if you plan to use the toy for anal and vaginal use, or if you think you can share a dildo. If you currently have a sexually transmitted infection, you should use a condom on a dildo, as this could allow you to re-infect yourself. However, if your dildo can be boiled in water (like some silicone dildos), you don't need to use a condom, provided you boil the dildo after each use.
Anal vs vaginal dildo
All dildos can be used for vaginal penetration, but only a few are safe for anal penetration. Those that are safe for anal use will be smooth and seamless and have a flared bottom to prevent them from slipping into the rectum. As mentioned above, you should not use the same dildo in your vagina and anus unless you use a condom or boil the toy between uses. About anal sex toys.
Check your dildo
Before using a dildo for the first time, remove it from its packaging, wash it, and inspect it carefully. Look for any tears or sharp edges. If the dildo is supposed to be non-porous, look for any holes or debris missing in the body of the dildo. If there are any defects, please return the dildo before use.
novice slow insertion
Before inserting a dildo, observe how it feels to rub it on the outside of your body. Use it first to massage and stimulate your external genitalia (vulva, labia or anus). Think of it like you're kidding yourself and increasing your penetration. Once you start using a dildo, be sure to start slowly. Notice how it feels and how it compares to penetration using your own or someone else's body parts.
Control rhythm and speed
Once you get used to using a dildo, try different rhythms and speeds. The great thing about a dildo is that it will do exactly what you want. It doesn't get tired or leg cramps, and you can stop and start at any time. Note the difference between slow and steady motion and fast and erratic motion. See what you like and what works for you, and make some mental notes for you to share with your partners in the future.

explore your depth
If you're playing with a long dildo, deep penetration can be pleasurable or painful. If you have a longer anus, you may bump the end of the dildo against your cervix, which can be painful. If you feel pain, stop what you are doing and start again slowly. You can adjust the length of the dildo simply by attaching it to the shaft rather than directly to the base. If your dildo is long enough, it allows for deeper penetration, which can be quite enjoyable. Experiment with different insertion angles and you may find some spots are more pleasing than others. You can also experiment with different sexual orientations to change how penetration feels.

increased clitoral stimulation
If you have access to your clitoris, you may find that increasing clitoral stimulation while using a dildo does change the sensation of penetration. Many women enjoy simultaneous penetration and clitoral stimulation, and while this may require some coordination, it's usually worth the effort. You can also use a vibrator to stimulate your clitoris while using a dildo.

Using a dildo with a partner
You can use a dildo with your partner in a number of ways. You can hold the dildo and use it yourself. You and your partner can use each other (but if you are both, you will need to use a new condom for each). You can also buy a harness or strap kit that you or your partner can put on the dildo and use with each other. Whatever you want to do, it's a good idea for everyone to do the above steps first and get yourself completely comfortable before adding a dildo.
If you like to play with dildos, you may find that the size is too small after the first 10-15 minutes of playing. Some people find that the size they want varies depending on their mood and how they open. That's why some dildo lovers have collections. So try experimenting with different sizes.