I'm a new #CoSo member and thought I'd share a couple of tips which people shared with me when I first joined.
If you want to share a photo but find they upload sideways, just do a small crop or edit before posting and you'll find it magically uploads the right way up!
If you're new, first of all welcome! If you want to find others who share your interests or those who work in the same field you do etc., use hashtags as people really do SEE them!