Choose a birthday card for the way it will be opened
Think about the recipient and who will be there.
At a mixed gathering
If a card is likely to be read aloud, check the cover and interior first. A card with a charm leaves the recipient something to keep. Hand over a cheekier card privately if the joke depends on context only the two of you share.
With a birthday gift
A card can explain why you picked the gift in a sentence. If you still need the present, browse the adult gag gift guide for a separate idea.
When you are sending it
Confirm the return address and choose an envelope that fits the card. A charm or other attached item can make the envelope thicker. Check the final size and thickness with the carrier before applying postage.