No! No such thing as being too old for RP!
Joining in with RP is easy. Just… jump in! But of course, respect the basic rules like don’t talk OOC in an IC area, don’t disrupt people’s fun etc.
You can do emotes with /me, such as your character picking something up. Speak aloud in /s to generally chat.
Make a cool character you like with maybe some fun background if you want to. Try looking at some lore on wowpedia or the likes to get an idea of what you’re getting into.
General RolePlay Guides << Some guides!
All in all, have fun. And welcome back.