i wouldn't advise it if it's your first time. make sure you cast the circle, and protect yourself really well. if you wish to summon a particular person, have an item of theres that they treasure in life, you could burn incense that's their favourite scent if you know it, otherwise frankincense might be best. no ouija board of course. but i'd recommend having another person there if only for protection.
I have never done siances and i don't plan on to do it. I know you need to have a lot of experience and protection for doing siances. Because negative energy and spirits can come through and try to harm you if they choose too. So make sure you know what you are doing if you plan on doing it. Don't ever do something you don't know how to do. Research, learn and practice first. And that can take time.