how do you walk into a club ALONE when you spent 8 years walking in holding someones hand

the practical question. logistically. how do you do it. like where do you put your hands. who do you stand with at the bar. when do you sit down. how do you make eye contact without looking desperate or thirsty. i walked in last weekend for the first time solo and i swear i forgot how to be a person. i did one lap, drank one drink standing in a corner like a teenager, and left after 40 mins. devastating. tips please... edinburgh